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Finding the Fourth Proportional to 6,248.62, 9,374.50 and 5,139.88

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Solution

The fourth proportional to 6,248.62, 9,374.50 and 5,139.88 is: 7,711.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,248.62 : 9,374.50 = 5,139.88 : x
  2. Step 2: Convert to fraction form
    6,248.62/9,374.50 = 5,139.88/x
  3. Step 3: Cross multiply
    6,248.62x = 9,374.50 × 5,139.88
  4. Step 4: Simplify right side
    6,248.62x = 48,183,805.06
  5. Step 5: Solve for x
    x = 48,183,805.06/6,248.62
  6. Step 6: Final answer
    x = 7,711.11

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1.5x scale

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.