Home / 8,545.24-12,815.38-3,279.88

Finding the Fourth Proportional to 8,545.24, 12,815.38 and 3,279.88

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Solution

The fourth proportional to 8,545.24, 12,815.38 and 3,279.88 is: 4,918.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,545.24 : 12,815.38 = 3,279.88 : x
  2. Step 2: Convert to fraction form
    8,545.24/12,815.38 = 3,279.88/x
  3. Step 3: Cross multiply
    8,545.24x = 12,815.38 × 3,279.88
  4. Step 4: Simplify right side
    8,545.24x = 42,032,908.55
  5. Step 5: Solve for x
    x = 42,032,908.55/8,545.24
  6. Step 6: Final answer
    x = 4,918.87

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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.