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Finding the Fourth Proportional to 8,007.91, 12,011.87 and 4,109.83

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Solution

The fourth proportional to 8,007.91, 12,011.87 and 4,109.83 is: 6,164.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,007.91 : 12,011.87 = 4,109.83 : x
  2. Step 2: Convert to fraction form
    8,007.91/12,011.87 = 4,109.83/x
  3. Step 3: Cross multiply
    8,007.91x = 12,011.87 × 4,109.83
  4. Step 4: Simplify right side
    8,007.91x = 49,366,723.13
  5. Step 5: Solve for x
    x = 49,366,723.13/8,007.91
  6. Step 6: Final answer
    x = 6,164.75

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Similar ratio
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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.