Home / 17,998.31-27,006.57-12,142.61

Finding the Fourth Proportional to 17,998.31, 27,006.57 and 12,142.61

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Solution

The fourth proportional to 17,998.31, 27,006.57 and 12,142.61 is: 18,220.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.31 : 27,006.57 = 12,142.61 : x
  2. Step 2: Convert to fraction form
    17,998.31/27,006.57 = 12,142.61/x
  3. Step 3: Cross multiply
    17,998.31x = 27,006.57 × 12,142.61
  4. Step 4: Simplify right side
    17,998.31x = 327,930,284.11
  5. Step 5: Solve for x
    x = 327,930,284.11/17,998.31
  6. Step 6: Final answer
    x = 18,220.06

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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.