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Finding the Fourth Proportional to 18,083.52, 27,092.88 and 6,389.28

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Solution

The fourth proportional to 18,083.52, 27,092.88 and 6,389.28 is: 9,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,083.52 : 27,092.88 = 6,389.28 : x
  2. Step 2: Convert to fraction form
    18,083.52/27,092.88 = 6,389.28/x
  3. Step 3: Cross multiply
    18,083.52x = 27,092.88 × 6,389.28
  4. Step 4: Simplify right side
    18,083.52x = 173,103,996.33
  5. Step 5: Solve for x
    x = 173,103,996.33/18,083.52
  6. Step 6: Final answer
    x = 9,572.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.