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Finding the Third Proportional to 8,418 and 13,843

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Solution

The third proportional to 8,418 and 13,843 is: 22,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418 : 13,843 = 13,843 : x
  2. Step 2: Convert to fraction form
    8,418/13,843 = 13,843/x
  3. Step 3: Cross multiply
    8,418x = 13,843 × 13,843
  4. Step 4: Simplify right side
    8,418x = 191,628,649
  5. Step 5: Solve for x
    x = 191,628,649/8,418
  6. Step 6: Final answer
    x = 22,764.15

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.