Home / 11,997.05-16,555.89-6,691.87

Finding the Fourth Proportional to 11,997.05, 16,555.89 and 6,691.87

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Solution

The fourth proportional to 11,997.05, 16,555.89 and 6,691.87 is: 9,234.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,997.05 : 16,555.89 = 6,691.87 : x
  2. Step 2: Convert to fraction form
    11,997.05/16,555.89 = 6,691.87/x
  3. Step 3: Cross multiply
    11,997.05x = 16,555.89 × 6,691.87
  4. Step 4: Simplify right side
    11,997.05x = 110,789,863.61
  5. Step 5: Solve for x
    x = 110,789,863.61/11,997.05
  6. Step 6: Final answer
    x = 9,234.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.