Home / 8,997.36-12,413.84-5,219.78

Finding the Fourth Proportional to 8,997.36, 12,413.84 and 5,219.78

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Solution

The fourth proportional to 8,997.36, 12,413.84 and 5,219.78 is: 7,201.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,997.36 : 12,413.84 = 5,219.78 : x
  2. Step 2: Convert to fraction form
    8,997.36/12,413.84 = 5,219.78/x
  3. Step 3: Cross multiply
    8,997.36x = 12,413.84 × 5,219.78
  4. Step 4: Simplify right side
    8,997.36x = 64,797,425.59
  5. Step 5: Solve for x
    x = 64,797,425.59/8,997.36
  6. Step 6: Final answer
    x = 7,201.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.