Home / 11,512.39-17,268.18-3,721

Finding the Fourth Proportional to 11,512.39, 17,268.18 and 3,721

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Solution

The fourth proportional to 11,512.39, 17,268.18 and 3,721 is: 5,581.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.39 : 17,268.18 = 3,721 : x
  2. Step 2: Convert to fraction form
    11,512.39/17,268.18 = 3,721/x
  3. Step 3: Cross multiply
    11,512.39x = 17,268.18 × 3,721
  4. Step 4: Simplify right side
    11,512.39x = 64,254,897.78
  5. Step 5: Solve for x
    x = 64,254,897.78/11,512.39
  6. Step 6: Final answer
    x = 5,581.37

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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.