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Finding the Third Proportional to 6,218 and 10,687

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Solution

The third proportional to 6,218 and 10,687 is: 18,367.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,218 : 10,687 = 10,687 : x
  2. Step 2: Convert to fraction form
    6,218/10,687 = 10,687/x
  3. Step 3: Cross multiply
    6,218x = 10,687 × 10,687
  4. Step 4: Simplify right side
    6,218x = 114,211,969
  5. Step 5: Solve for x
    x = 114,211,969/6,218
  6. Step 6: Final answer
    x = 18,367.96

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Why These Related Problems?

These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.