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Finding the Fourth Proportional to 6,624.38, 9,918.80 and 3,497.90

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Solution

The fourth proportional to 6,624.38, 9,918.80 and 3,497.90 is: 5,237.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.38 : 9,918.80 = 3,497.90 : x
  2. Step 2: Convert to fraction form
    6,624.38/9,918.80 = 3,497.90/x
  3. Step 3: Cross multiply
    6,624.38x = 9,918.80 × 3,497.90
  4. Step 4: Simplify right side
    6,624.38x = 34,694,970.52
  5. Step 5: Solve for x
    x = 34,694,970.52/6,624.38
  6. Step 6: Final answer
    x = 5,237.47

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