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Finding the Third Proportional to 9,240 and 12,214

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Solution

The third proportional to 9,240 and 12,214 is: 16,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,240 : 12,214 = 12,214 : x
  2. Step 2: Convert to fraction form
    9,240/12,214 = 12,214/x
  3. Step 3: Cross multiply
    9,240x = 12,214 × 12,214
  4. Step 4: Simplify right side
    9,240x = 149,181,796
  5. Step 5: Solve for x
    x = 149,181,796/9,240
  6. Step 6: Final answer
    x = 16,145.22

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.