Home / 13,660.21-20,481.83-5,758.66

Finding the Fourth Proportional to 13,660.21, 20,481.83 and 5,758.66

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Solution

The fourth proportional to 13,660.21, 20,481.83 and 5,758.66 is: 8,634.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.21 : 20,481.83 = 5,758.66 : x
  2. Step 2: Convert to fraction form
    13,660.21/20,481.83 = 5,758.66/x
  3. Step 3: Cross multiply
    13,660.21x = 20,481.83 × 5,758.66
  4. Step 4: Simplify right side
    13,660.21x = 117,947,815.15
  5. Step 5: Solve for x
    x = 117,947,815.15/13,660.21
  6. Step 6: Final answer
    x = 8,634.41

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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.