Question

The mean proportional to 9 and 16 is ?​

Answer 1

Answer:

the mean proportional of 9 and 16 is 12

Answer 2

$\tt \red{Answer:-}$

Let the mean proportion between 9 and 16 be x.

According to the condition,

$\tt{9:x::x:16}$

$\tt{ = > \frac{9}{x} = \frac{x}{16} }$

$= > \tt{x \times x = 16 \times 9}$

$= > \tt{ {x}^{2} = 144}$

$= > \tt{x = \sqrt{144} }$

$\implies \tt \red{x = 12}$

$\text{The answer is 12.}$