Home / 8,413.39-12,617.96-2,489.12

Finding the Fourth Proportional to 8,413.39, 12,617.96 and 2,489.12

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Solution

The fourth proportional to 8,413.39, 12,617.96 and 2,489.12 is: 3,733.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413.39 : 12,617.96 = 2,489.12 : x
  2. Step 2: Convert to fraction form
    8,413.39/12,617.96 = 2,489.12/x
  3. Step 3: Cross multiply
    8,413.39x = 12,617.96 × 2,489.12
  4. Step 4: Simplify right side
    8,413.39x = 31,407,616.60
  5. Step 5: Solve for x
    x = 31,407,616.60/8,413.39
  6. Step 6: Final answer
    x = 3,733.05

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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.