Home / 7,413.90-11,120.85-3,902.55

Finding the Fourth Proportional to 7,413.90, 11,120.85 and 3,902.55

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Solution

The fourth proportional to 7,413.90, 11,120.85 and 3,902.55 is: 5,853.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,413.90 : 11,120.85 = 3,902.55 : x
  2. Step 2: Convert to fraction form
    7,413.90/11,120.85 = 3,902.55/x
  3. Step 3: Cross multiply
    7,413.90x = 11,120.85 × 3,902.55
  4. Step 4: Simplify right side
    7,413.90x = 43,399,673.17
  5. Step 5: Solve for x
    x = 43,399,673.17/7,413.90
  6. Step 6: Final answer
    x = 5,853.83

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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.