Question

What is the third proportional to 9 and 12​

Answer 1

Answer:

the third proportional to 9 and 12​ is 16.

Step-by-step explanation:

Let third propotional be x then

9:12:x

9/12=12/x

cross multiplication

9x=12*12

x=144/9

x=16

Answer 2

$\huge\underline\mathfrak\green{Solution:-}$

$\huge\mathrm\red{Question:-}$

• What is the third proportional to 9 and 12?

$\huge\mathrm\pink{Answer:-}$

• 16 is the third proportional to 9 and 12.

$\huge\mathrm\orange{Explanation:-}$

Let third proportion = x

∴ 9:12 :: 12:x

⟹9x = 12×12

⟹x = 16

$\huge\mathrm\purple{=\:16\:Ans}$