Home / 8,366.20-12,539.76-3,977.44

Finding the Fourth Proportional to 8,366.20, 12,539.76 and 3,977.44

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Solution

The fourth proportional to 8,366.20, 12,539.76 and 3,977.44 is: 5,961.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,366.20 : 12,539.76 = 3,977.44 : x
  2. Step 2: Convert to fraction form
    8,366.20/12,539.76 = 3,977.44/x
  3. Step 3: Cross multiply
    8,366.20x = 12,539.76 × 3,977.44
  4. Step 4: Simplify right side
    8,366.20x = 49,876,143.01
  5. Step 5: Solve for x
    x = 49,876,143.01/8,366.20
  6. Step 6: Final answer
    x = 5,961.62

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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.