Home / 8,545.49-12,819.60-3,280.29

Finding the Fourth Proportional to 8,545.49, 12,819.60 and 3,280.29

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Solution

The fourth proportional to 8,545.49, 12,819.60 and 3,280.29 is: 4,920.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.49 : 12,819.60 = 3,280.29 : x
  2. Step 2: Convert to fraction form
    8,545.49/12,819.60 = 3,280.29/x
  3. Step 3: Cross multiply
    8,545.49x = 12,819.60 × 3,280.29
  4. Step 4: Simplify right side
    8,545.49x = 42,052,005.68
  5. Step 5: Solve for x
    x = 42,052,005.68/8,545.49
  6. Step 6: Final answer
    x = 4,920.96

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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.