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Finding the Third Proportional to 7,983 and 12,753

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Solution

The third proportional to 7,983 and 12,753 is: 20,373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983 : 12,753 = 12,753 : x
  2. Step 2: Convert to fraction form
    7,983/12,753 = 12,753/x
  3. Step 3: Cross multiply
    7,983x = 12,753 × 12,753
  4. Step 4: Simplify right side
    7,983x = 162,639,009
  5. Step 5: Solve for x
    x = 162,639,009/7,983
  6. Step 6: Final answer
    x = 20,373.17

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.