Home / 7,872.47-10,863.82-4,517.25

Finding the Fourth Proportional to 7,872.47, 10,863.82 and 4,517.25

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Solution

The fourth proportional to 7,872.47, 10,863.82 and 4,517.25 is: 6,233.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.47 : 10,863.82 = 4,517.25 : x
  2. Step 2: Convert to fraction form
    7,872.47/10,863.82 = 4,517.25/x
  3. Step 3: Cross multiply
    7,872.47x = 10,863.82 × 4,517.25
  4. Step 4: Simplify right side
    7,872.47x = 49,074,590.90
  5. Step 5: Solve for x
    x = 49,074,590.90/7,872.47
  6. Step 6: Final answer
    x = 6,233.70

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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.