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Finding the Third Proportional to 7,978 and 16,343

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Solution

The third proportional to 7,978 and 16,343 is: 33,478.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,978 : 16,343 = 16,343 : x
  2. Step 2: Convert to fraction form
    7,978/16,343 = 16,343/x
  3. Step 3: Cross multiply
    7,978x = 16,343 × 16,343
  4. Step 4: Simplify right side
    7,978x = 267,093,649
  5. Step 5: Solve for x
    x = 267,093,649/7,978
  6. Step 6: Final answer
    x = 33,478.77

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These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.