Home / 18,560.32-27,843.28-5,413.60

Finding the Fourth Proportional to 18,560.32, 27,843.28 and 5,413.60

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Solution

The fourth proportional to 18,560.32, 27,843.28 and 5,413.60 is: 8,121.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.32 : 27,843.28 = 5,413.60 : x
  2. Step 2: Convert to fraction form
    18,560.32/27,843.28 = 5,413.60/x
  3. Step 3: Cross multiply
    18,560.32x = 27,843.28 × 5,413.60
  4. Step 4: Simplify right side
    18,560.32x = 150,732,380.61
  5. Step 5: Solve for x
    x = 150,732,380.61/18,560.32
  6. Step 6: Final answer
    x = 8,121.22

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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.