Home / 7,872.10-10,863.30-4,514.38

Finding the Fourth Proportional to 7,872.10, 10,863.30 and 4,514.38

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Solution

The fourth proportional to 7,872.10, 10,863.30 and 4,514.38 is: 6,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,872.10 : 10,863.30 = 4,514.38 : x
  2. Step 2: Convert to fraction form
    7,872.10/10,863.30 = 4,514.38/x
  3. Step 3: Cross multiply
    7,872.10x = 10,863.30 × 4,514.38
  4. Step 4: Simplify right side
    7,872.10x = 49,041,064.25
  5. Step 5: Solve for x
    x = 49,041,064.25/7,872.10
  6. Step 6: Final answer
    x = 6,229.73

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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.