Question

the third proportional between 9 and 12 is​

Answer 1

Answer:

16

Step-by-step explanation:

Answer 2

Answer:

Let the third proportional to 9 and 12 be x. Then the fourth proportional to 9 , 12 , 12 is x.

$9:12::12:x \\ 9 \times x = 12 \times 12 \\ x = \frac{12 \times 12}{9} = 16$

Hence, the third proportional to 9 and 12 is 16.