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Finding the Third Proportional to 6,446 and 11,488

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Solution

The third proportional to 6,446 and 11,488 is: 20,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,446 : 11,488 = 11,488 : x
  2. Step 2: Convert to fraction form
    6,446/11,488 = 11,488/x
  3. Step 3: Cross multiply
    6,446x = 11,488 × 11,488
  4. Step 4: Simplify right side
    6,446x = 131,974,144
  5. Step 5: Solve for x
    x = 131,974,144/6,446
  6. Step 6: Final answer
    x = 20,473.80

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.