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Finding the Third Proportional to 7,840 and 10,753

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Solution

The third proportional to 7,840 and 10,753 is: 14,748.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840 : 10,753 = 10,753 : x
  2. Step 2: Convert to fraction form
    7,840/10,753 = 10,753/x
  3. Step 3: Cross multiply
    7,840x = 10,753 × 10,753
  4. Step 4: Simplify right side
    7,840x = 115,627,009
  5. Step 5: Solve for x
    x = 115,627,009/7,840
  6. Step 6: Final answer
    x = 14,748.34

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.