Home / 11,424.20-17,120.23-5,413.89

Finding the Fourth Proportional to 11,424.20, 17,120.23 and 5,413.89

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Solution

The fourth proportional to 11,424.20, 17,120.23 and 5,413.89 is: 8,113.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,424.20 : 17,120.23 = 5,413.89 : x
  2. Step 2: Convert to fraction form
    11,424.20/17,120.23 = 5,413.89/x
  3. Step 3: Cross multiply
    11,424.20x = 17,120.23 × 5,413.89
  4. Step 4: Simplify right side
    11,424.20x = 92,687,092.66
  5. Step 5: Solve for x
    x = 92,687,092.66/11,424.20
  6. Step 6: Final answer
    x = 8,113.23

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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.