Home / 11,540.75-17,312.80-3,640.60

Finding the Fourth Proportional to 11,540.75, 17,312.80 and 3,640.60

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Solution

The fourth proportional to 11,540.75, 17,312.80 and 3,640.60 is: 5,461.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,540.75 : 17,312.80 = 3,640.60 : x
  2. Step 2: Convert to fraction form
    11,540.75/17,312.80 = 3,640.60/x
  3. Step 3: Cross multiply
    11,540.75x = 17,312.80 × 3,640.60
  4. Step 4: Simplify right side
    11,540.75x = 63,028,979.68
  5. Step 5: Solve for x
    x = 63,028,979.68/11,540.75
  6. Step 6: Final answer
    x = 5,461.43

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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.