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Finding the Fourth Proportional to 8,545.68, 12,818.25 and 3,613.98

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Solution

The fourth proportional to 8,545.68, 12,818.25 and 3,613.98 is: 5,420.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.68 : 12,818.25 = 3,613.98 : x
  2. Step 2: Convert to fraction form
    8,545.68/12,818.25 = 3,613.98/x
  3. Step 3: Cross multiply
    8,545.68x = 12,818.25 × 3,613.98
  4. Step 4: Simplify right side
    8,545.68x = 46,324,899.14
  5. Step 5: Solve for x
    x = 46,324,899.14/8,545.68
  6. Step 6: Final answer
    x = 5,420.86

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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.