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Finding the Third Proportional to 8,743.50 and 11,229

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Solution

The third proportional to 8,743.50 and 11,229 is: 14,421.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.50 : 11,229 = 11,229 : x
  2. Step 2: Convert to fraction form
    8,743.50/11,229 = 11,229/x
  3. Step 3: Cross multiply
    8,743.50x = 11,229 × 11,229
  4. Step 4: Simplify right side
    8,743.50x = 126,090,441
  5. Step 5: Solve for x
    x = 126,090,441/8,743.50
  6. Step 6: Final answer
    x = 14,421.05

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.