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Finding the Third Proportional to 8,556.26 and 12,159.49

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Solution

The third proportional to 8,556.26 and 12,159.49 is: 17,280.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.26 : 12,159.49 = 12,159.49 : x
  2. Step 2: Convert to fraction form
    8,556.26/12,159.49 = 12,159.49/x
  3. Step 3: Cross multiply
    8,556.26x = 12,159.49 × 12,159.49
  4. Step 4: Simplify right side
    8,556.26x = 147,853,250.26
  5. Step 5: Solve for x
    x = 147,853,250.26/8,556.26
  6. Step 6: Final answer
    x = 17,280.13

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.