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Finding the Third Proportional to 7,228 and 11,646

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Solution

The third proportional to 7,228 and 11,646 is: 18,764.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,228 : 11,646 = 11,646 : x
  2. Step 2: Convert to fraction form
    7,228/11,646 = 11,646/x
  3. Step 3: Cross multiply
    7,228x = 11,646 × 11,646
  4. Step 4: Simplify right side
    7,228x = 135,629,316
  5. Step 5: Solve for x
    x = 135,629,316/7,228
  6. Step 6: Final answer
    x = 18,764.43

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.