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Finding the Third Proportional to 5,135 and 10,918

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Solution

The third proportional to 5,135 and 10,918 is: 23,213.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,135 : 10,918 = 10,918 : x
  2. Step 2: Convert to fraction form
    5,135/10,918 = 10,918/x
  3. Step 3: Cross multiply
    5,135x = 10,918 × 10,918
  4. Step 4: Simplify right side
    5,135x = 119,202,724
  5. Step 5: Solve for x
    x = 119,202,724/5,135
  6. Step 6: Final answer
    x = 23,213.77

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.