Home / 7,182.74-9,912.19-3,995.97

Finding the Fourth Proportional to 7,182.74, 9,912.19 and 3,995.97

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Solution

The fourth proportional to 7,182.74, 9,912.19 and 3,995.97 is: 5,514.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.74 : 9,912.19 = 3,995.97 : x
  2. Step 2: Convert to fraction form
    7,182.74/9,912.19 = 3,995.97/x
  3. Step 3: Cross multiply
    7,182.74x = 9,912.19 × 3,995.97
  4. Step 4: Simplify right side
    7,182.74x = 39,608,813.87
  5. Step 5: Solve for x
    x = 39,608,813.87/7,182.74
  6. Step 6: Final answer
    x = 5,514.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.