Home / 8,151.40-12,194.70-7,067.80

Finding the Fourth Proportional to 8,151.40, 12,194.70 and 7,067.80

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Solution

The fourth proportional to 8,151.40, 12,194.70 and 7,067.80 is: 10,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,151.40 : 12,194.70 = 7,067.80 : x
  2. Step 2: Convert to fraction form
    8,151.40/12,194.70 = 7,067.80/x
  3. Step 3: Cross multiply
    8,151.40x = 12,194.70 × 7,067.80
  4. Step 4: Simplify right side
    8,151.40x = 86,189,700.66
  5. Step 5: Solve for x
    x = 86,189,700.66/8,151.40
  6. Step 6: Final answer
    x = 10,573.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.