Home / 18,561.60-27,844.90-5,413.86

Finding the Fourth Proportional to 18,561.60, 27,844.90 and 5,413.86

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Solution

The fourth proportional to 18,561.60, 27,844.90 and 5,413.86 is: 8,121.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.60 : 27,844.90 = 5,413.86 : x
  2. Step 2: Convert to fraction form
    18,561.60/27,844.90 = 5,413.86/x
  3. Step 3: Cross multiply
    18,561.60x = 27,844.90 × 5,413.86
  4. Step 4: Simplify right side
    18,561.60x = 150,748,376.78
  5. Step 5: Solve for x
    x = 150,748,376.78/18,561.60
  6. Step 6: Final answer
    x = 8,121.52

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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.