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Finding the Third Proportional to 11,424 and 17,808

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Solution

The third proportional to 11,424 and 17,808 is: 27,759.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,424 : 17,808 = 17,808 : x
  2. Step 2: Convert to fraction form
    11,424/17,808 = 17,808/x
  3. Step 3: Cross multiply
    11,424x = 17,808 × 17,808
  4. Step 4: Simplify right side
    11,424x = 317,124,864
  5. Step 5: Solve for x
    x = 317,124,864/11,424
  6. Step 6: Final answer
    x = 27,759.53

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.