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Finding the Third Proportional to 8,633 and 13,381

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Solution

The third proportional to 8,633 and 13,381 is: 20,740.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,633 : 13,381 = 13,381 : x
  2. Step 2: Convert to fraction form
    8,633/13,381 = 13,381/x
  3. Step 3: Cross multiply
    8,633x = 13,381 × 13,381
  4. Step 4: Simplify right side
    8,633x = 179,051,161
  5. Step 5: Solve for x
    x = 179,051,161/8,633
  6. Step 6: Final answer
    x = 20,740.32

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.