Home / 18,144.38-27,205.52-8,147.18

Finding the Fourth Proportional to 18,144.38, 27,205.52 and 8,147.18

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Solution

The fourth proportional to 18,144.38, 27,205.52 and 8,147.18 is: 12,215.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.38 : 27,205.52 = 8,147.18 : x
  2. Step 2: Convert to fraction form
    18,144.38/27,205.52 = 8,147.18/x
  3. Step 3: Cross multiply
    18,144.38x = 27,205.52 × 8,147.18
  4. Step 4: Simplify right side
    18,144.38x = 221,648,227.70
  5. Step 5: Solve for x
    x = 221,648,227.70/18,144.38
  6. Step 6: Final answer
    x = 12,215.81

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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.