Home / 13,413.15-20,117.45-3,553.43

Finding the Fourth Proportional to 13,413.15, 20,117.45 and 3,553.43

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Solution

The fourth proportional to 13,413.15, 20,117.45 and 3,553.43 is: 5,329.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.15 : 20,117.45 = 3,553.43 : x
  2. Step 2: Convert to fraction form
    13,413.15/20,117.45 = 3,553.43/x
  3. Step 3: Cross multiply
    13,413.15x = 20,117.45 × 3,553.43
  4. Step 4: Simplify right side
    13,413.15x = 71,485,832.00
  5. Step 5: Solve for x
    x = 71,485,832.00/13,413.15
  6. Step 6: Final answer
    x = 5,329.53

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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.