Home / 8,639.52-12,960.18-3,092.04

Finding the Fourth Proportional to 8,639.52, 12,960.18 and 3,092.04

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Solution

The fourth proportional to 8,639.52, 12,960.18 and 3,092.04 is: 4,638.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.52 : 12,960.18 = 3,092.04 : x
  2. Step 2: Convert to fraction form
    8,639.52/12,960.18 = 3,092.04/x
  3. Step 3: Cross multiply
    8,639.52x = 12,960.18 × 3,092.04
  4. Step 4: Simplify right side
    8,639.52x = 40,073,394.97
  5. Step 5: Solve for x
    x = 40,073,394.97/8,639.52
  6. Step 6: Final answer
    x = 4,638.38

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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.