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Finding the Third Proportional to 8,528 and 12,328

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Solution

The third proportional to 8,528 and 12,328 is: 17,821.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528 : 12,328 = 12,328 : x
  2. Step 2: Convert to fraction form
    8,528/12,328 = 12,328/x
  3. Step 3: Cross multiply
    8,528x = 12,328 × 12,328
  4. Step 4: Simplify right side
    8,528x = 151,979,584
  5. Step 5: Solve for x
    x = 151,979,584/8,528
  6. Step 6: Final answer
    x = 17,821.25

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.