Home / 12,545.11-17,310.55-7,508.18

Finding the Fourth Proportional to 12,545.11, 17,310.55 and 7,508.18

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Solution

The fourth proportional to 12,545.11, 17,310.55 and 7,508.18 is: 10,360.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.11 : 17,310.55 = 7,508.18 : x
  2. Step 2: Convert to fraction form
    12,545.11/17,310.55 = 7,508.18/x
  3. Step 3: Cross multiply
    12,545.11x = 17,310.55 × 7,508.18
  4. Step 4: Simplify right side
    12,545.11x = 129,970,725.30
  5. Step 5: Solve for x
    x = 129,970,725.30/12,545.11
  6. Step 6: Final answer
    x = 10,360.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.