Home / 12,270.76-18,393.42-5,691.56

Finding the Fourth Proportional to 12,270.76, 18,393.42 and 5,691.56

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Solution

The fourth proportional to 12,270.76, 18,393.42 and 5,691.56 is: 8,531.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.76 : 18,393.42 = 5,691.56 : x
  2. Step 2: Convert to fraction form
    12,270.76/18,393.42 = 5,691.56/x
  3. Step 3: Cross multiply
    12,270.76x = 18,393.42 × 5,691.56
  4. Step 4: Simplify right side
    12,270.76x = 104,687,253.54
  5. Step 5: Solve for x
    x = 104,687,253.54/12,270.76
  6. Step 6: Final answer
    x = 8,531.44

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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.