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Finding the Third Proportional to 6,777 and 10,129.50

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Solution

The third proportional to 6,777 and 10,129.50 is: 15,140.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,777 : 10,129.50 = 10,129.50 : x
  2. Step 2: Convert to fraction form
    6,777/10,129.50 = 10,129.50/x
  3. Step 3: Cross multiply
    6,777x = 10,129.50 × 10,129.50
  4. Step 4: Simplify right side
    6,777x = 102,606,770.25
  5. Step 5: Solve for x
    x = 102,606,770.25/6,777
  6. Step 6: Final answer
    x = 15,140.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.