Home / 7,986.32-11,979.48-2,793.68

Finding the Fourth Proportional to 7,986.32, 11,979.48 and 2,793.68

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Solution

The fourth proportional to 7,986.32, 11,979.48 and 2,793.68 is: 4,190.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986.32 : 11,979.48 = 2,793.68 : x
  2. Step 2: Convert to fraction form
    7,986.32/11,979.48 = 2,793.68/x
  3. Step 3: Cross multiply
    7,986.32x = 11,979.48 × 2,793.68
  4. Step 4: Simplify right side
    7,986.32x = 33,466,833.69
  5. Step 5: Solve for x
    x = 33,466,833.69/7,986.32
  6. Step 6: Final answer
    x = 4,190.52

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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.