Question

fourth proportion of 2 : 3 :: 9​

Answer 1

Answer:

13.5

this is the answer

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Answer 2

Answer:

❣Answer❣

➡ Let the fourth proportional to 2,3,9 be x.

➡Then, 2 : 3 : : 9 : x

➡ 2 × x = 3 × 9

➡$x = \frac{3 \times 9}{2} = \frac{27}{2} = 13.5$

Hence, fourth proportional to 2,3,9 is 13.5.