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Finding the Third Proportional to 6,436 and 11,768

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Solution

The third proportional to 6,436 and 11,768 is: 21,517.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,436 : 11,768 = 11,768 : x
  2. Step 2: Convert to fraction form
    6,436/11,768 = 11,768/x
  3. Step 3: Cross multiply
    6,436x = 11,768 × 11,768
  4. Step 4: Simplify right side
    6,436x = 138,485,824
  5. Step 5: Solve for x
    x = 138,485,824/6,436
  6. Step 6: Final answer
    x = 21,517.37

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Why These Related Problems?

These problems maintain the same ratio (1.83) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.