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Finding the Fourth Proportional to 8,670.72, 13,006.20 and 2,514.72

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Solution

The fourth proportional to 8,670.72, 13,006.20 and 2,514.72 is: 3,772.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.72 : 13,006.20 = 2,514.72 : x
  2. Step 2: Convert to fraction form
    8,670.72/13,006.20 = 2,514.72/x
  3. Step 3: Cross multiply
    8,670.72x = 13,006.20 × 2,514.72
  4. Step 4: Simplify right side
    8,670.72x = 32,706,951.26
  5. Step 5: Solve for x
    x = 32,706,951.26/8,670.72
  6. Step 6: Final answer
    x = 3,772.11

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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.