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Finding the Fourth Proportional to 7,067.71, 10,647.40 and 6,723.87

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Solution

The fourth proportional to 7,067.71, 10,647.40 and 6,723.87 is: 10,129.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,067.71 : 10,647.40 = 6,723.87 : x
  2. Step 2: Convert to fraction form
    7,067.71/10,647.40 = 6,723.87/x
  3. Step 3: Cross multiply
    7,067.71x = 10,647.40 × 6,723.87
  4. Step 4: Simplify right side
    7,067.71x = 71,591,733.44
  5. Step 5: Solve for x
    x = 71,591,733.44/7,067.71
  6. Step 6: Final answer
    x = 10,129.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.