Home / 18,545.10-27,824.13-12,329.70

Finding the Fourth Proportional to 18,545.10, 27,824.13 and 12,329.70

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Solution

The fourth proportional to 18,545.10, 27,824.13 and 12,329.70 is: 18,498.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,545.10 : 27,824.13 = 12,329.70 : x
  2. Step 2: Convert to fraction form
    18,545.10/27,824.13 = 12,329.70/x
  3. Step 3: Cross multiply
    18,545.10x = 27,824.13 × 12,329.70
  4. Step 4: Simplify right side
    18,545.10x = 343,063,175.66
  5. Step 5: Solve for x
    x = 343,063,175.66/18,545.10
  6. Step 6: Final answer
    x = 18,498.86

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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.