Question

please let me know if you can
no nonsense answers
with explanation​

Answer 1

Answer:

Let the fourth proportional to the numbers 4, 9, and 12 be x. Then from the definition of the fourth proportional, we must have:

4: 9 :: 12 : x or in terms of the fractions we can write;

4x = 9 × 12. In other words, we have x = {9 × 12}/4 = 27. Thus the correct option is D) 27