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Finding the Fourth Proportional to 8,799.70, 13,199.55 and 3,609.30

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Solution

The fourth proportional to 8,799.70, 13,199.55 and 3,609.30 is: 5,413.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799.70 : 13,199.55 = 3,609.30 : x
  2. Step 2: Convert to fraction form
    8,799.70/13,199.55 = 3,609.30/x
  3. Step 3: Cross multiply
    8,799.70x = 13,199.55 × 3,609.30
  4. Step 4: Simplify right side
    8,799.70x = 47,641,135.82
  5. Step 5: Solve for x
    x = 47,641,135.82/8,799.70
  6. Step 6: Final answer
    x = 5,413.95

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Similar ratio
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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.