Home / 8,155.91-12,230.00-3,160.62

Finding the Fourth Proportional to 8,155.91, 12,230.00 and 3,160.62

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Solution

The fourth proportional to 8,155.91, 12,230.00 and 3,160.62 is: 4,739.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155.91 : 12,230.00 = 3,160.62 : x
  2. Step 2: Convert to fraction form
    8,155.91/12,230.00 = 3,160.62/x
  3. Step 3: Cross multiply
    8,155.91x = 12,230.00 × 3,160.62
  4. Step 4: Simplify right side
    8,155.91x = 38,654,366.80
  5. Step 5: Solve for x
    x = 38,654,366.80/8,155.91
  6. Step 6: Final answer
    x = 4,739.43

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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.