Home / 11,785.08-17,680.50-3,993.96

Finding the Fourth Proportional to 11,785.08, 17,680.50 and 3,993.96

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Solution

The fourth proportional to 11,785.08, 17,680.50 and 3,993.96 is: 5,991.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.08 : 17,680.50 = 3,993.96 : x
  2. Step 2: Convert to fraction form
    11,785.08/17,680.50 = 3,993.96/x
  3. Step 3: Cross multiply
    11,785.08x = 17,680.50 × 3,993.96
  4. Step 4: Simplify right side
    11,785.08x = 70,615,209.78
  5. Step 5: Solve for x
    x = 70,615,209.78/11,785.08
  6. Step 6: Final answer
    x = 5,991.92

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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.