Home / 12,761.96-19,142.92-3,997.55

Finding the Fourth Proportional to 12,761.96, 19,142.92 and 3,997.55

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Solution

The fourth proportional to 12,761.96, 19,142.92 and 3,997.55 is: 5,996.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,761.96 : 19,142.92 = 3,997.55 : x
  2. Step 2: Convert to fraction form
    12,761.96/19,142.92 = 3,997.55/x
  3. Step 3: Cross multiply
    12,761.96x = 19,142.92 × 3,997.55
  4. Step 4: Simplify right side
    12,761.96x = 76,524,832.70
  5. Step 5: Solve for x
    x = 76,524,832.70/12,761.96
  6. Step 6: Final answer
    x = 5,996.33

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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.