Home / 18,610.11-27,917.10-7,515

Finding the Fourth Proportional to 18,610.11, 27,917.10 and 7,515

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Solution

The fourth proportional to 18,610.11, 27,917.10 and 7,515 is: 11,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.11 : 27,917.10 = 7,515 : x
  2. Step 2: Convert to fraction form
    18,610.11/27,917.10 = 7,515/x
  3. Step 3: Cross multiply
    18,610.11x = 27,917.10 × 7,515
  4. Step 4: Simplify right side
    18,610.11x = 209,797,006.50
  5. Step 5: Solve for x
    x = 209,797,006.50/18,610.11
  6. Step 6: Final answer
    x = 11,273.28

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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.