Home / 12,545.13-18,820.85-8,854.56

Finding the Fourth Proportional to 12,545.13, 18,820.85 and 8,854.56

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Solution

The fourth proportional to 12,545.13, 18,820.85 and 8,854.56 is: 13,284.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.13 : 18,820.85 = 8,854.56 : x
  2. Step 2: Convert to fraction form
    12,545.13/18,820.85 = 8,854.56/x
  3. Step 3: Cross multiply
    12,545.13x = 18,820.85 × 8,854.56
  4. Step 4: Simplify right side
    12,545.13x = 166,650,446.59
  5. Step 5: Solve for x
    x = 166,650,446.59/12,545.13
  6. Step 6: Final answer
    x = 13,284.08

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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.