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Finding the Fourth Proportional to 13,692.51, 20,538.72 and 3,304.26

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Solution

The fourth proportional to 13,692.51, 20,538.72 and 3,304.26 is: 4,956.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,692.51 : 20,538.72 = 3,304.26 : x
  2. Step 2: Convert to fraction form
    13,692.51/20,538.72 = 3,304.26/x
  3. Step 3: Cross multiply
    13,692.51x = 20,538.72 × 3,304.26
  4. Step 4: Simplify right side
    13,692.51x = 67,865,270.95
  5. Step 5: Solve for x
    x = 67,865,270.95/13,692.51
  6. Step 6: Final answer
    x = 4,956.38

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