Home / 8,135.45-12,203.39-2,292.02

Finding the Fourth Proportional to 8,135.45, 12,203.39 and 2,292.02

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Solution

The fourth proportional to 8,135.45, 12,203.39 and 2,292.02 is: 3,438.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.45 : 12,203.39 = 2,292.02 : x
  2. Step 2: Convert to fraction form
    8,135.45/12,203.39 = 2,292.02/x
  3. Step 3: Cross multiply
    8,135.45x = 12,203.39 × 2,292.02
  4. Step 4: Simplify right side
    8,135.45x = 27,970,413.95
  5. Step 5: Solve for x
    x = 27,970,413.95/8,135.45
  6. Step 6: Final answer
    x = 3,438.09

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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.