Home / 8,275.12-12,402.10-3,882.90

Finding the Fourth Proportional to 8,275.12, 12,402.10 and 3,882.90

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Solution

The fourth proportional to 8,275.12, 12,402.10 and 3,882.90 is: 5,819.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.12 : 12,402.10 = 3,882.90 : x
  2. Step 2: Convert to fraction form
    8,275.12/12,402.10 = 3,882.90/x
  3. Step 3: Cross multiply
    8,275.12x = 12,402.10 × 3,882.90
  4. Step 4: Simplify right side
    8,275.12x = 48,156,114.09
  5. Step 5: Solve for x
    x = 48,156,114.09/8,275.12
  6. Step 6: Final answer
    x = 5,819.39

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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.