Home / 11,512.76-17,265.48-3,719.78

Finding the Fourth Proportional to 11,512.76, 17,265.48 and 3,719.78

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Solution

The fourth proportional to 11,512.76, 17,265.48 and 3,719.78 is: 5,578.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.76 : 17,265.48 = 3,719.78 : x
  2. Step 2: Convert to fraction form
    11,512.76/17,265.48 = 3,719.78/x
  3. Step 3: Cross multiply
    11,512.76x = 17,265.48 × 3,719.78
  4. Step 4: Simplify right side
    11,512.76x = 64,223,787.19
  5. Step 5: Solve for x
    x = 64,223,787.19/11,512.76
  6. Step 6: Final answer
    x = 5,578.49

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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.