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Finding the Third Proportional to 7,229.25 and 11,580.47

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Solution

The third proportional to 7,229.25 and 11,580.47 is: 18,550.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,229.25 : 11,580.47 = 11,580.47 : x
  2. Step 2: Convert to fraction form
    7,229.25/11,580.47 = 11,580.47/x
  3. Step 3: Cross multiply
    7,229.25x = 11,580.47 × 11,580.47
  4. Step 4: Simplify right side
    7,229.25x = 134,107,256.47
  5. Step 5: Solve for x
    x = 134,107,256.47/7,229.25
  6. Step 6: Final answer
    x = 18,550.65

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.