Question

The mean proportional between 36 and 9 is:

• A. 12
• B. 18
• C. 9
• D. 24

Answer 1

Answer:

B. 18

The mean proportional between two numbers (a) and (b) is:

$\sqrt{a \times b}$

Given: 36 and 9

$\sqrt{36 \times 9} = \sqrt{324} = 18$

Final Answer: 18