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Finding the Third Proportional to 12,221 and 18,567

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Solution

The third proportional to 12,221 and 18,567 is: 28,208.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,221 : 18,567 = 18,567 : x
  2. Step 2: Convert to fraction form
    12,221/18,567 = 18,567/x
  3. Step 3: Cross multiply
    12,221x = 18,567 × 18,567
  4. Step 4: Simplify right side
    12,221x = 344,733,489
  5. Step 5: Solve for x
    x = 344,733,489/12,221
  6. Step 6: Final answer
    x = 28,208.29

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.