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Finding the Third Proportional to 6,439.50 and 6,949.13

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Solution

The third proportional to 6,439.50 and 6,949.13 is: 7,499.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439.50 : 6,949.13 = 6,949.13 : x
  2. Step 2: Convert to fraction form
    6,439.50/6,949.13 = 6,949.13/x
  3. Step 3: Cross multiply
    6,439.50x = 6,949.13 × 6,949.13
  4. Step 4: Simplify right side
    6,439.50x = 48,290,338.27
  5. Step 5: Solve for x
    x = 48,290,338.27/6,439.50
  6. Step 6: Final answer
    x = 7,499.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.