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Finding the Third Proportional to 8,644 and 18,611

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Solution

The third proportional to 8,644 and 18,611 is: 40,070.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644 : 18,611 = 18,611 : x
  2. Step 2: Convert to fraction form
    8,644/18,611 = 18,611/x
  3. Step 3: Cross multiply
    8,644x = 18,611 × 18,611
  4. Step 4: Simplify right side
    8,644x = 346,369,321
  5. Step 5: Solve for x
    x = 346,369,321/8,644
  6. Step 6: Final answer
    x = 40,070.49

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.