Home / 13,745.75-20,608.52-4,380.37

Finding the Fourth Proportional to 13,745.75, 20,608.52 and 4,380.37

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Solution

The fourth proportional to 13,745.75, 20,608.52 and 4,380.37 is: 6,567.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,745.75 : 20,608.52 = 4,380.37 : x
  2. Step 2: Convert to fraction form
    13,745.75/20,608.52 = 4,380.37/x
  3. Step 3: Cross multiply
    13,745.75x = 20,608.52 × 4,380.37
  4. Step 4: Simplify right side
    13,745.75x = 90,272,902.18
  5. Step 5: Solve for x
    x = 90,272,902.18/13,745.75
  6. Step 6: Final answer
    x = 6,567.33

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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.