Home / 8,876.72-12,247.62-6,514.76

Finding the Fourth Proportional to 8,876.72, 12,247.62 and 6,514.76

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Solution

The fourth proportional to 8,876.72, 12,247.62 and 6,514.76 is: 8,988.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.72 : 12,247.62 = 6,514.76 : x
  2. Step 2: Convert to fraction form
    8,876.72/12,247.62 = 6,514.76/x
  3. Step 3: Cross multiply
    8,876.72x = 12,247.62 × 6,514.76
  4. Step 4: Simplify right side
    8,876.72x = 79,790,304.87
  5. Step 5: Solve for x
    x = 79,790,304.87/8,876.72
  6. Step 6: Final answer
    x = 8,988.71

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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.