Home / 11,120.66-16,687.56-4,105.56

Finding the Fourth Proportional to 11,120.66, 16,687.56 and 4,105.56

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Solution

The fourth proportional to 11,120.66, 16,687.56 and 4,105.56 is: 6,160.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.66 : 16,687.56 = 4,105.56 : x
  2. Step 2: Convert to fraction form
    11,120.66/16,687.56 = 4,105.56/x
  3. Step 3: Cross multiply
    11,120.66x = 16,687.56 × 4,105.56
  4. Step 4: Simplify right side
    11,120.66x = 68,511,778.83
  5. Step 5: Solve for x
    x = 68,511,778.83/11,120.66
  6. Step 6: Final answer
    x = 6,160.77

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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.