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Finding the Fourth Proportional to 12,468.38, 18,702.54 and 7,270.61

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Solution

The fourth proportional to 12,468.38, 18,702.54 and 7,270.61 is: 10,905.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,468.38 : 18,702.54 = 7,270.61 : x
  2. Step 2: Convert to fraction form
    12,468.38/18,702.54 = 7,270.61/x
  3. Step 3: Cross multiply
    12,468.38x = 18,702.54 × 7,270.61
  4. Step 4: Simplify right side
    12,468.38x = 135,978,780.84
  5. Step 5: Solve for x
    x = 135,978,780.84/12,468.38
  6. Step 6: Final answer
    x = 10,905.89

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