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Finding the Third Proportional to 11,208 and 18,271

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Solution

The third proportional to 11,208 and 18,271 is: 29,784.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208 : 18,271 = 18,271 : x
  2. Step 2: Convert to fraction form
    11,208/18,271 = 18,271/x
  3. Step 3: Cross multiply
    11,208x = 18,271 × 18,271
  4. Step 4: Simplify right side
    11,208x = 333,829,441
  5. Step 5: Solve for x
    x = 333,829,441/11,208
  6. Step 6: Final answer
    x = 29,784.93

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.