Home / 8,413.12-12,619.14-2,569.78

Finding the Fourth Proportional to 8,413.12, 12,619.14 and 2,569.78

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Solution

The fourth proportional to 8,413.12, 12,619.14 and 2,569.78 is: 3,854.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,413.12 : 12,619.14 = 2,569.78 : x
  2. Step 2: Convert to fraction form
    8,413.12/12,619.14 = 2,569.78/x
  3. Step 3: Cross multiply
    8,413.12x = 12,619.14 × 2,569.78
  4. Step 4: Simplify right side
    8,413.12x = 32,428,413.59
  5. Step 5: Solve for x
    x = 32,428,413.59/8,413.12
  6. Step 6: Final answer
    x = 3,854.51

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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.