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Finding the Fourth Proportional to 8,154.08, 12,231.13 and 1,998.08

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Solution

The fourth proportional to 8,154.08, 12,231.13 and 1,998.08 is: 2,997.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.08 : 12,231.13 = 1,998.08 : x
  2. Step 2: Convert to fraction form
    8,154.08/12,231.13 = 1,998.08/x
  3. Step 3: Cross multiply
    8,154.08x = 12,231.13 × 1,998.08
  4. Step 4: Simplify right side
    8,154.08x = 24,438,766.24
  5. Step 5: Solve for x
    x = 24,438,766.24/8,154.08
  6. Step 6: Final answer
    x = 2,997.12

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Double scale
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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.