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Finding the Third Proportional to 8,280 and 11,352

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Solution

The third proportional to 8,280 and 11,352 is: 15,563.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280 : 11,352 = 11,352 : x
  2. Step 2: Convert to fraction form
    8,280/11,352 = 11,352/x
  3. Step 3: Cross multiply
    8,280x = 11,352 × 11,352
  4. Step 4: Simplify right side
    8,280x = 128,867,904
  5. Step 5: Solve for x
    x = 128,867,904/8,280
  6. Step 6: Final answer
    x = 15,563.76

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.