Home / 18,275.30-27,413.76-5,127.38

Finding the Fourth Proportional to 18,275.30, 27,413.76 and 5,127.38

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Solution

The fourth proportional to 18,275.30, 27,413.76 and 5,127.38 is: 7,691.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.30 : 27,413.76 = 5,127.38 : x
  2. Step 2: Convert to fraction form
    18,275.30/27,413.76 = 5,127.38/x
  3. Step 3: Cross multiply
    18,275.30x = 27,413.76 × 5,127.38
  4. Step 4: Simplify right side
    18,275.30x = 140,560,764.75
  5. Step 5: Solve for x
    x = 140,560,764.75/18,275.30
  6. Step 6: Final answer
    x = 7,691.30

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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.