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Finding the Third Proportional to 6,206 and 13,639

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Solution

The third proportional to 6,206 and 13,639 is: 29,974.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,206 : 13,639 = 13,639 : x
  2. Step 2: Convert to fraction form
    6,206/13,639 = 13,639/x
  3. Step 3: Cross multiply
    6,206x = 13,639 × 13,639
  4. Step 4: Simplify right side
    6,206x = 186,022,321
  5. Step 5: Solve for x
    x = 186,022,321/6,206
  6. Step 6: Final answer
    x = 29,974.59

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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.