Home / 11,861.28-17,793.75-3,961.35

Finding the Fourth Proportional to 11,861.28, 17,793.75 and 3,961.35

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Solution

The fourth proportional to 11,861.28, 17,793.75 and 3,961.35 is: 5,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.28 : 17,793.75 = 3,961.35 : x
  2. Step 2: Convert to fraction form
    11,861.28/17,793.75 = 3,961.35/x
  3. Step 3: Cross multiply
    11,861.28x = 17,793.75 × 3,961.35
  4. Step 4: Simplify right side
    11,861.28x = 70,487,271.56
  5. Step 5: Solve for x
    x = 70,487,271.56/11,861.28
  6. Step 6: Final answer
    x = 5,942.64

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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.