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Finding the Fourth Proportional to 8,476.56, 12,712.56 and 3,545.19

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Solution

The fourth proportional to 8,476.56, 12,712.56 and 3,545.19 is: 5,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,476.56 : 12,712.56 = 3,545.19 : x
  2. Step 2: Convert to fraction form
    8,476.56/12,712.56 = 3,545.19/x
  3. Step 3: Cross multiply
    8,476.56x = 12,712.56 × 3,545.19
  4. Step 4: Simplify right side
    8,476.56x = 45,068,440.59
  5. Step 5: Solve for x
    x = 45,068,440.59/8,476.56
  6. Step 6: Final answer
    x = 5,316.83

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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.