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Finding the Third Proportional to 5,304 and 7,987

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Solution

The third proportional to 5,304 and 7,987 is: 12,027.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,304 : 7,987 = 7,987 : x
  2. Step 2: Convert to fraction form
    5,304/7,987 = 7,987/x
  3. Step 3: Cross multiply
    5,304x = 7,987 × 7,987
  4. Step 4: Simplify right side
    5,304x = 63,792,169
  5. Step 5: Solve for x
    x = 63,792,169/5,304
  6. Step 6: Final answer
    x = 12,027.18

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.