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Finding the Fourth Proportional to 7,691.14, 11,545.82 and 6,473.71

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Solution

The fourth proportional to 7,691.14, 11,545.82 and 6,473.71 is: 9,718.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,691.14 : 11,545.82 = 6,473.71 : x
  2. Step 2: Convert to fraction form
    7,691.14/11,545.82 = 6,473.71/x
  3. Step 3: Cross multiply
    7,691.14x = 11,545.82 × 6,473.71
  4. Step 4: Simplify right side
    7,691.14x = 74,744,290.39
  5. Step 5: Solve for x
    x = 74,744,290.39/7,691.14
  6. Step 6: Final answer
    x = 9,718.23

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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.