Home / 11,861.56-17,790.32-3,963.18

Finding the Fourth Proportional to 11,861.56, 17,790.32 and 3,963.18

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Solution

The fourth proportional to 11,861.56, 17,790.32 and 3,963.18 is: 5,944.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.56 : 17,790.32 = 3,963.18 : x
  2. Step 2: Convert to fraction form
    11,861.56/17,790.32 = 3,963.18/x
  3. Step 3: Cross multiply
    11,861.56x = 17,790.32 × 3,963.18
  4. Step 4: Simplify right side
    11,861.56x = 70,506,131.65
  5. Step 5: Solve for x
    x = 70,506,131.65/11,861.56
  6. Step 6: Final answer
    x = 5,944.09

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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.