Home / 18,275.55-27,413.28-7,174.47

Finding the Fourth Proportional to 18,275.55, 27,413.28 and 7,174.47

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Solution

The fourth proportional to 18,275.55, 27,413.28 and 7,174.47 is: 10,761.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.55 : 27,413.28 = 7,174.47 : x
  2. Step 2: Convert to fraction form
    18,275.55/27,413.28 = 7,174.47/x
  3. Step 3: Cross multiply
    18,275.55x = 27,413.28 × 7,174.47
  4. Step 4: Simplify right side
    18,275.55x = 196,675,754.96
  5. Step 5: Solve for x
    x = 196,675,754.96/18,275.55
  6. Step 6: Final answer
    x = 10,761.69

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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.