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Finding the Fourth Proportional to 9,140.52, 13,700.80 and 4,691.96

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Solution

The fourth proportional to 9,140.52, 13,700.80 and 4,691.96 is: 7,032.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.52 : 13,700.80 = 4,691.96 : x
  2. Step 2: Convert to fraction form
    9,140.52/13,700.80 = 4,691.96/x
  3. Step 3: Cross multiply
    9,140.52x = 13,700.80 × 4,691.96
  4. Step 4: Simplify right side
    9,140.52x = 64,283,605.57
  5. Step 5: Solve for x
    x = 64,283,605.57/9,140.52
  6. Step 6: Final answer
    x = 7,032.82

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