Home / 13,813.88-20,729.39-5,049.54

Finding the Fourth Proportional to 13,813.88, 20,729.39 and 5,049.54

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Solution

The fourth proportional to 13,813.88, 20,729.39 and 5,049.54 is: 7,577.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813.88 : 20,729.39 = 5,049.54 : x
  2. Step 2: Convert to fraction form
    13,813.88/20,729.39 = 5,049.54/x
  3. Step 3: Cross multiply
    13,813.88x = 20,729.39 × 5,049.54
  4. Step 4: Simplify right side
    13,813.88x = 104,673,858.73
  5. Step 5: Solve for x
    x = 104,673,858.73/13,813.88
  6. Step 6: Final answer
    x = 7,577.44

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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.