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Finding the Fourth Proportional to 8,987.74, 13,480.39 and 2,413.98

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Solution

The fourth proportional to 8,987.74, 13,480.39 and 2,413.98 is: 3,620.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.74 : 13,480.39 = 2,413.98 : x
  2. Step 2: Convert to fraction form
    8,987.74/13,480.39 = 2,413.98/x
  3. Step 3: Cross multiply
    8,987.74x = 13,480.39 × 2,413.98
  4. Step 4: Simplify right side
    8,987.74x = 32,541,391.85
  5. Step 5: Solve for x
    x = 32,541,391.85/8,987.74
  6. Step 6: Final answer
    x = 3,620.64

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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.