Home / 18,874.35-28,288.71-10,545.66

Finding the Fourth Proportional to 18,874.35, 28,288.71 and 10,545.66

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Solution

The fourth proportional to 18,874.35, 28,288.71 and 10,545.66 is: 15,805.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.35 : 28,288.71 = 10,545.66 : x
  2. Step 2: Convert to fraction form
    18,874.35/28,288.71 = 10,545.66/x
  3. Step 3: Cross multiply
    18,874.35x = 28,288.71 × 10,545.66
  4. Step 4: Simplify right side
    18,874.35x = 298,323,117.50
  5. Step 5: Solve for x
    x = 298,323,117.50/18,874.35
  6. Step 6: Final answer
    x = 15,805.74

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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.