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Finding the Third Proportional to 12,868 and 27,318

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Solution

The third proportional to 12,868 and 27,318 is: 57,994.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868 : 27,318 = 27,318 : x
  2. Step 2: Convert to fraction form
    12,868/27,318 = 27,318/x
  3. Step 3: Cross multiply
    12,868x = 27,318 × 27,318
  4. Step 4: Simplify right side
    12,868x = 746,273,124
  5. Step 5: Solve for x
    x = 746,273,124/12,868
  6. Step 6: Final answer
    x = 57,994.49

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.