Home / 8,311.20-12,451.68-4,837.92

Finding the Fourth Proportional to 8,311.20, 12,451.68 and 4,837.92

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Solution

The fourth proportional to 8,311.20, 12,451.68 and 4,837.92 is: 7,248.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.20 : 12,451.68 = 4,837.92 : x
  2. Step 2: Convert to fraction form
    8,311.20/12,451.68 = 4,837.92/x
  3. Step 3: Cross multiply
    8,311.20x = 12,451.68 × 4,837.92
  4. Step 4: Simplify right side
    8,311.20x = 60,240,231.71
  5. Step 5: Solve for x
    x = 60,240,231.71/8,311.20
  6. Step 6: Final answer
    x = 7,248.08

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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.