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Finding the Third Proportional to 11,659.50 and 18,239.25

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Solution

The third proportional to 11,659.50 and 18,239.25 is: 28,532.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,659.50 : 18,239.25 = 18,239.25 : x
  2. Step 2: Convert to fraction form
    11,659.50/18,239.25 = 18,239.25/x
  3. Step 3: Cross multiply
    11,659.50x = 18,239.25 × 18,239.25
  4. Step 4: Simplify right side
    11,659.50x = 332,670,240.56
  5. Step 5: Solve for x
    x = 332,670,240.56/11,659.50
  6. Step 6: Final answer
    x = 28,532.12

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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.