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Finding the Third Proportional to 11,168 and 18,432

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Solution

The third proportional to 11,168 and 18,432 is: 30,420.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168 : 18,432 = 18,432 : x
  2. Step 2: Convert to fraction form
    11,168/18,432 = 18,432/x
  3. Step 3: Cross multiply
    11,168x = 18,432 × 18,432
  4. Step 4: Simplify right side
    11,168x = 339,738,624
  5. Step 5: Solve for x
    x = 339,738,624/11,168
  6. Step 6: Final answer
    x = 30,420.72

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Why These Related Problems?

These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.