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Finding the Third Proportional to 5,638 and 13,246

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Solution

The third proportional to 5,638 and 13,246 is: 31,120.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,638 : 13,246 = 13,246 : x
  2. Step 2: Convert to fraction form
    5,638/13,246 = 13,246/x
  3. Step 3: Cross multiply
    5,638x = 13,246 × 13,246
  4. Step 4: Simplify right side
    5,638x = 175,456,516
  5. Step 5: Solve for x
    x = 175,456,516/5,638
  6. Step 6: Final answer
    x = 31,120.35

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.