Home / 13,825.41-20,738.75-3,966.09

Finding the Fourth Proportional to 13,825.41, 20,738.75 and 3,966.09

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Solution

The fourth proportional to 13,825.41, 20,738.75 and 3,966.09 is: 5,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.41 : 20,738.75 = 3,966.09 : x
  2. Step 2: Convert to fraction form
    13,825.41/20,738.75 = 3,966.09/x
  3. Step 3: Cross multiply
    13,825.41x = 20,738.75 × 3,966.09
  4. Step 4: Simplify right side
    13,825.41x = 82,251,729.16
  5. Step 5: Solve for x
    x = 82,251,729.16/13,825.41
  6. Step 6: Final answer
    x = 5,949.32

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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.