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Finding the Third Proportional to 8,508.80 and 18,640.76

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Solution

The third proportional to 8,508.80 and 18,640.76 is: 40,837.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.80 : 18,640.76 = 18,640.76 : x
  2. Step 2: Convert to fraction form
    8,508.80/18,640.76 = 18,640.76/x
  3. Step 3: Cross multiply
    8,508.80x = 18,640.76 × 18,640.76
  4. Step 4: Simplify right side
    8,508.80x = 347,477,851.82
  5. Step 5: Solve for x
    x = 347,477,851.82/8,508.80
  6. Step 6: Final answer
    x = 40,837.48

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.