Question

    What is the fourth proportional to 5, 9,

    25?
    A 30 Correct Answer Incorrect Answer
    B 45 Correct Answer Incorrect Answer
    C 36 Correct Answer Incorrect Answer
    D 40 Correct Answer Incorrect Answer

    Solution

    Let the fourth proportion be x. Then, => 5 : 9 :: 25 : x => 5x = 25 × 9 => x = (25 × 9)/5 = 45

    Practice Next

    Relevant for Exams: