Home / 18,610.85-27,922.94-7,942.61

Finding the Fourth Proportional to 18,610.85, 27,922.94 and 7,942.61

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Solution

The fourth proportional to 18,610.85, 27,922.94 and 7,942.61 is: 11,916.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.85 : 27,922.94 = 7,942.61 : x
  2. Step 2: Convert to fraction form
    18,610.85/27,922.94 = 7,942.61/x
  3. Step 3: Cross multiply
    18,610.85x = 27,922.94 × 7,942.61
  4. Step 4: Simplify right side
    18,610.85x = 221,781,022.47
  5. Step 5: Solve for x
    x = 221,781,022.47/18,610.85
  6. Step 6: Final answer
    x = 11,916.76

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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.