Question

Find the third proportional to 9 and 12

Answer 1

hey friend
let the number be x
9:12:x
12^2=9×x
144=9x
x=144÷9
x=16
hope it helps you:):):):)
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Answer 2

The third proportional to 9 and 12 is 16.

Step-by-step explanation:

Given:

Find the third proportional to 9 and 12

Solution:

Consider their ratios be 9 : 12 : x

$\frac{9}{12} = \frac{12}{x}$

By cross multiplication,  

9x = 12 $\times$ 12

9x = 144

X = 16.

To know more:

Find the third proportion of 8 and 12

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