Home / 11,431.80-17,147.67-3,640.59

Finding the Fourth Proportional to 11,431.80, 17,147.67 and 3,640.59

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Solution

The fourth proportional to 11,431.80, 17,147.67 and 3,640.59 is: 5,460.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.80 : 17,147.67 = 3,640.59 : x
  2. Step 2: Convert to fraction form
    11,431.80/17,147.67 = 3,640.59/x
  3. Step 3: Cross multiply
    11,431.80x = 17,147.67 × 3,640.59
  4. Step 4: Simplify right side
    11,431.80x = 62,427,635.93
  5. Step 5: Solve for x
    x = 62,427,635.93/11,431.80
  6. Step 6: Final answer
    x = 5,460.88

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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.