## What is the ratio of third proportional to 12 and 30 and the mean proportional between 9 and 25?

The ratio of third proportional to 12 and 30 and the mean proportional between 9 and 25 is. A) 2:1.

**What is the third proportional of 10 and 30?**

Similarly, for 10 and 30 the third proportional is 90.

**What is the 3rd proportional?**

The third proportional of a proportion is the second term of the mean terms. For example, if we have a:b = c:d, then the term ‘c’ is the third proportional to ‘a’ and ‘b’.

### What is the 3rd proportional to 15 and 30?

Therefore, the third proportional to 15 and 30 is 60.

**What is third proportional and mean proportional?**

If y is the mean proportional of x and z, y^2 = xz, i.e., y = +√xz. For example, the mean proportion of 4 and 16 = +√4×16 = +√64 = 8. If x, y and z are in continued proportion then z is called the third proportional. For example, the third proportional of 4, 8 is 16.

**What is the third proportional of 12 and 18?**

3.

#### What is the third proportional to 6 and 12?

24

Hence, the third proportional of 6 and 12 is 24.

**What is the third proportional to 12 and 18?**

3. 6.

**What is the third proportion of 12 and 6?**

## What is the third proportional of 3 and 27?

Hence, the third proportional of 3 and 27 is “243”.

**How do you find the third proportional?**

We can write it as a:b = c:d. The quantity c is known as third proportional to the quantities a, b, and d. For example, if we write the quantities 7,8,9, and 10 in the proportional form 7:8 :: 9:10, then 9 is the third proportional to 7, 8, and 10.

**What is the mean proportional of 3 and 12?**

Answer Expert Verified The mean proportion between 12 and 3 is 6. Therefore the mean proportion between 12 and 3 is 6.

### What is the ratio of third proportional to 12 and 30?

Let the third proportional to 12 and 30 be x. = 75. Third proportional to 12 and 30 = 75. = 15. Required ratio = 75 : 15 = 5 : 1. (Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)

**Which is the correct answer for the fourth proportional?**

Answer: Let the fourth proportional to the numbers 4, 9, and 12 be x. Then from the definition of the fourth proportional, we must have: 4x = 9 × 12. In other words, we have x = {9 × 12}/4 = 27. Thus the correct option is D) 27.

**How to find third proportion to 5 and 25?**

Find the third proportion to 5 and 25? To find third proportional of any two numbers let say a and b be two numbers and c is in third proportion with a and b

#### Which is an example of a mean proportional?

The mean proportional between the two terms of a ratio in a proportional is the square root of the product of these two. For example, in the proportion a:b :: c:d, we can define the mean proportional for the ratio a:b as the square root of the product of the two terms of the ratio or √ab.