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Finding the Third Proportional to 7,910 and 12,344

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Solution

The third proportional to 7,910 and 12,344 is: 19,263.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910 : 12,344 = 12,344 : x
  2. Step 2: Convert to fraction form
    7,910/12,344 = 12,344/x
  3. Step 3: Cross multiply
    7,910x = 12,344 × 12,344
  4. Step 4: Simplify right side
    7,910x = 152,374,336
  5. Step 5: Solve for x
    x = 152,374,336/7,910
  6. Step 6: Final answer
    x = 19,263.51

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.