Home / 8,127.46-11,221.37-5,103.87

Finding the Fourth Proportional to 8,127.46, 11,221.37 and 5,103.87

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Solution

The fourth proportional to 8,127.46, 11,221.37 and 5,103.87 is: 7,046.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.46 : 11,221.37 = 5,103.87 : x
  2. Step 2: Convert to fraction form
    8,127.46/11,221.37 = 5,103.87/x
  3. Step 3: Cross multiply
    8,127.46x = 11,221.37 × 5,103.87
  4. Step 4: Simplify right side
    8,127.46x = 57,272,413.70
  5. Step 5: Solve for x
    x = 57,272,413.70/8,127.46
  6. Step 6: Final answer
    x = 7,046.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.