Home / 13,644.41-20,467.56-5,321.66

Finding the Fourth Proportional to 13,644.41, 20,467.56 and 5,321.66

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Solution

The fourth proportional to 13,644.41, 20,467.56 and 5,321.66 is: 7,982.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,644.41 : 20,467.56 = 5,321.66 : x
  2. Step 2: Convert to fraction form
    13,644.41/20,467.56 = 5,321.66/x
  3. Step 3: Cross multiply
    13,644.41x = 20,467.56 × 5,321.66
  4. Step 4: Simplify right side
    13,644.41x = 108,921,466.47
  5. Step 5: Solve for x
    x = 108,921,466.47/13,644.41
  6. Step 6: Final answer
    x = 7,982.86

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1.5x scale

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.