Home / 18,115.50-27,105.12-10,723.44

Finding the Fourth Proportional to 18,115.50, 27,105.12 and 10,723.44

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Solution

The fourth proportional to 18,115.50, 27,105.12 and 10,723.44 is: 16,044.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.50 : 27,105.12 = 10,723.44 : x
  2. Step 2: Convert to fraction form
    18,115.50/27,105.12 = 10,723.44/x
  3. Step 3: Cross multiply
    18,115.50x = 27,105.12 × 10,723.44
  4. Step 4: Simplify right side
    18,115.50x = 290,660,128.01
  5. Step 5: Solve for x
    x = 290,660,128.01/18,115.50
  6. Step 6: Final answer
    x = 16,044.83

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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.