Home / 8,639.93-12,966.82-4,481.13

Finding the Fourth Proportional to 8,639.93, 12,966.82 and 4,481.13

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Solution

The fourth proportional to 8,639.93, 12,966.82 and 4,481.13 is: 6,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639.93 : 12,966.82 = 4,481.13 : x
  2. Step 2: Convert to fraction form
    8,639.93/12,966.82 = 4,481.13/x
  3. Step 3: Cross multiply
    8,639.93x = 12,966.82 × 4,481.13
  4. Step 4: Simplify right side
    8,639.93x = 58,105,983.70
  5. Step 5: Solve for x
    x = 58,105,983.70/8,639.93
  6. Step 6: Final answer
    x = 6,725.28

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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.