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Finding the Third Proportional to 8,357.20 and 18,354.52

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Solution

The third proportional to 8,357.20 and 18,354.52 is: 40,311.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,357.20 : 18,354.52 = 18,354.52 : x
  2. Step 2: Convert to fraction form
    8,357.20/18,354.52 = 18,354.52/x
  3. Step 3: Cross multiply
    8,357.20x = 18,354.52 × 18,354.52
  4. Step 4: Simplify right side
    8,357.20x = 336,888,243.83
  5. Step 5: Solve for x
    x = 336,888,243.83/8,357.20
  6. Step 6: Final answer
    x = 40,311.12

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.