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Finding the Third Proportional to 6,721 and 10,259

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Solution

The third proportional to 6,721 and 10,259 is: 15,659.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,721 : 10,259 = 10,259 : x
  2. Step 2: Convert to fraction form
    6,721/10,259 = 10,259/x
  3. Step 3: Cross multiply
    6,721x = 10,259 × 10,259
  4. Step 4: Simplify right side
    6,721x = 105,247,081
  5. Step 5: Solve for x
    x = 105,247,081/6,721
  6. Step 6: Final answer
    x = 15,659.44

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.