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Finding the Third Proportional to 7,039 and 8,251

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Solution

The third proportional to 7,039 and 8,251 is: 9,671.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039 : 8,251 = 8,251 : x
  2. Step 2: Convert to fraction form
    7,039/8,251 = 8,251/x
  3. Step 3: Cross multiply
    7,039x = 8,251 × 8,251
  4. Step 4: Simplify right side
    7,039x = 68,079,001
  5. Step 5: Solve for x
    x = 68,079,001/7,039
  6. Step 6: Final answer
    x = 9,671.69

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.