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Finding the Third Proportional to 8,528 and 12,488

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Solution

The third proportional to 8,528 and 12,488 is: 18,286.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528 : 12,488 = 12,488 : x
  2. Step 2: Convert to fraction form
    8,528/12,488 = 12,488/x
  3. Step 3: Cross multiply
    8,528x = 12,488 × 12,488
  4. Step 4: Simplify right side
    8,528x = 155,950,144
  5. Step 5: Solve for x
    x = 155,950,144/8,528
  6. Step 6: Final answer
    x = 18,286.84

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.