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Finding the Third Proportional to 7,948 and 13,042

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Solution

The third proportional to 7,948 and 13,042 is: 21,400.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948 : 13,042 = 13,042 : x
  2. Step 2: Convert to fraction form
    7,948/13,042 = 13,042/x
  3. Step 3: Cross multiply
    7,948x = 13,042 × 13,042
  4. Step 4: Simplify right side
    7,948x = 170,093,764
  5. Step 5: Solve for x
    x = 170,093,764/7,948
  6. Step 6: Final answer
    x = 21,400.83

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.