Home / 13,413.55-20,118.03-3,552.97

Finding the Fourth Proportional to 13,413.55, 20,118.03 and 3,552.97

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Solution

The fourth proportional to 13,413.55, 20,118.03 and 3,552.97 is: 5,328.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.55 : 20,118.03 = 3,552.97 : x
  2. Step 2: Convert to fraction form
    13,413.55/20,118.03 = 3,552.97/x
  3. Step 3: Cross multiply
    13,413.55x = 20,118.03 × 3,552.97
  4. Step 4: Simplify right side
    13,413.55x = 71,478,757.05
  5. Step 5: Solve for x
    x = 71,478,757.05/13,413.55
  6. Step 6: Final answer
    x = 5,328.85

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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.