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Finding the Third Proportional to 12,087 and 15,633

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Solution

The third proportional to 12,087 and 15,633 is: 20,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087 : 15,633 = 15,633 : x
  2. Step 2: Convert to fraction form
    12,087/15,633 = 15,633/x
  3. Step 3: Cross multiply
    12,087x = 15,633 × 15,633
  4. Step 4: Simplify right side
    12,087x = 244,390,689
  5. Step 5: Solve for x
    x = 244,390,689/12,087
  6. Step 6: Final answer
    x = 20,219.30

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Why These Related Problems?

These problems maintain the same ratio (1.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.