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Finding the Third Proportional to 8,396 and 11,770

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Solution

The third proportional to 8,396 and 11,770 is: 16,499.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,396 : 11,770 = 11,770 : x
  2. Step 2: Convert to fraction form
    8,396/11,770 = 11,770/x
  3. Step 3: Cross multiply
    8,396x = 11,770 × 11,770
  4. Step 4: Simplify right side
    8,396x = 138,532,900
  5. Step 5: Solve for x
    x = 138,532,900/8,396
  6. Step 6: Final answer
    x = 16,499.87

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.