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Finding the Third Proportional to 6,686 and 14,380

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Solution

The third proportional to 6,686 and 14,380 is: 30,927.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,686 : 14,380 = 14,380 : x
  2. Step 2: Convert to fraction form
    6,686/14,380 = 14,380/x
  3. Step 3: Cross multiply
    6,686x = 14,380 × 14,380
  4. Step 4: Simplify right side
    6,686x = 206,784,400
  5. Step 5: Solve for x
    x = 206,784,400/6,686
  6. Step 6: Final answer
    x = 30,927.97

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.