Home / 8,179.76-12,269.92-2,633.02

Finding the Fourth Proportional to 8,179.76, 12,269.92 and 2,633.02

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Solution

The fourth proportional to 8,179.76, 12,269.92 and 2,633.02 is: 3,949.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.76 : 12,269.92 = 2,633.02 : x
  2. Step 2: Convert to fraction form
    8,179.76/12,269.92 = 2,633.02/x
  3. Step 3: Cross multiply
    8,179.76x = 12,269.92 × 2,633.02
  4. Step 4: Simplify right side
    8,179.76x = 32,306,944.76
  5. Step 5: Solve for x
    x = 32,306,944.76/8,179.76
  6. Step 6: Final answer
    x = 3,949.62

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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.