Home / 11,911.20-17,861.03-3,589.67

Finding the Fourth Proportional to 11,911.20, 17,861.03 and 3,589.67

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Solution

The fourth proportional to 11,911.20, 17,861.03 and 3,589.67 is: 5,382.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.20 : 17,861.03 = 3,589.67 : x
  2. Step 2: Convert to fraction form
    11,911.20/17,861.03 = 3,589.67/x
  3. Step 3: Cross multiply
    11,911.20x = 17,861.03 × 3,589.67
  4. Step 4: Simplify right side
    11,911.20x = 64,115,096.31
  5. Step 5: Solve for x
    x = 64,115,096.31/11,911.20
  6. Step 6: Final answer
    x = 5,382.76

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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.