Home / 7,863.27-11,789.43-3,478.33

Finding the Fourth Proportional to 7,863.27, 11,789.43 and 3,478.33

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Solution

The fourth proportional to 7,863.27, 11,789.43 and 3,478.33 is: 5,215.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.27 : 11,789.43 = 3,478.33 : x
  2. Step 2: Convert to fraction form
    7,863.27/11,789.43 = 3,478.33/x
  3. Step 3: Cross multiply
    7,863.27x = 11,789.43 × 3,478.33
  4. Step 4: Simplify right side
    7,863.27x = 41,007,528.05
  5. Step 5: Solve for x
    x = 41,007,528.05/7,863.27
  6. Step 6: Final answer
    x = 5,215.07

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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.