Home / 18,516.04-25,542.60-12,545.68

Finding the Fourth Proportional to 18,516.04, 25,542.60 and 12,545.68

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Solution

The fourth proportional to 18,516.04, 25,542.60 and 12,545.68 is: 17,306.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.04 : 25,542.60 = 12,545.68 : x
  2. Step 2: Convert to fraction form
    18,516.04/25,542.60 = 12,545.68/x
  3. Step 3: Cross multiply
    18,516.04x = 25,542.60 × 12,545.68
  4. Step 4: Simplify right side
    18,516.04x = 320,449,285.97
  5. Step 5: Solve for x
    x = 320,449,285.97/18,516.04
  6. Step 6: Final answer
    x = 17,306.58

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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.