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Finding the Fourth Proportional to 8,503.28, 12,754.57 and 2,957.88

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Solution

The fourth proportional to 8,503.28, 12,754.57 and 2,957.88 is: 4,436.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,503.28 : 12,754.57 = 2,957.88 : x
  2. Step 2: Convert to fraction form
    8,503.28/12,754.57 = 2,957.88/x
  3. Step 3: Cross multiply
    8,503.28x = 12,754.57 × 2,957.88
  4. Step 4: Simplify right side
    8,503.28x = 37,726,487.51
  5. Step 5: Solve for x
    x = 37,726,487.51/8,503.28
  6. Step 6: Final answer
    x = 4,436.70

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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.