Home / 18,545.22-27,812.88-5,217.39

Finding the Fourth Proportional to 18,545.22, 27,812.88 and 5,217.39

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Solution

The fourth proportional to 18,545.22, 27,812.88 and 5,217.39 is: 7,824.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,545.22 : 27,812.88 = 5,217.39 : x
  2. Step 2: Convert to fraction form
    18,545.22/27,812.88 = 5,217.39/x
  3. Step 3: Cross multiply
    18,545.22x = 27,812.88 × 5,217.39
  4. Step 4: Simplify right side
    18,545.22x = 145,110,641.98
  5. Step 5: Solve for x
    x = 145,110,641.98/18,545.22
  6. Step 6: Final answer
    x = 7,824.69

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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.