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Finding the Fourth Proportional to 9,137.92, 13,711.13 and 4,972.98

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Solution

The fourth proportional to 9,137.92, 13,711.13 and 4,972.98 is: 7,461.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,137.92 : 13,711.13 = 4,972.98 : x
  2. Step 2: Convert to fraction form
    9,137.92/13,711.13 = 4,972.98/x
  3. Step 3: Cross multiply
    9,137.92x = 13,711.13 × 4,972.98
  4. Step 4: Simplify right side
    9,137.92x = 68,185,171.32
  5. Step 5: Solve for x
    x = 68,185,171.32/9,137.92
  6. Step 6: Final answer
    x = 7,461.78

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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.