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Finding the Third Proportional to 5,351 and 9,910

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Solution

The third proportional to 5,351 and 9,910 is: 18,353.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,351 : 9,910 = 9,910 : x
  2. Step 2: Convert to fraction form
    5,351/9,910 = 9,910/x
  3. Step 3: Cross multiply
    5,351x = 9,910 × 9,910
  4. Step 4: Simplify right side
    5,351x = 98,208,100
  5. Step 5: Solve for x
    x = 98,208,100/5,351
  6. Step 6: Final answer
    x = 18,353.22

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Why These Related Problems?

These problems maintain the same ratio (1.85) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.