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Finding the Third Proportional to 7,894 and 17,384

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Solution

The third proportional to 7,894 and 17,384 is: 38,282.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,894 : 17,384 = 17,384 : x
  2. Step 2: Convert to fraction form
    7,894/17,384 = 17,384/x
  3. Step 3: Cross multiply
    7,894x = 17,384 × 17,384
  4. Step 4: Simplify right side
    7,894x = 302,203,456
  5. Step 5: Solve for x
    x = 302,203,456/7,894
  6. Step 6: Final answer
    x = 38,282.68

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.