Home / 13,928.56-20,894.04-5,163.54

Finding the Fourth Proportional to 13,928.56, 20,894.04 and 5,163.54

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Solution

The fourth proportional to 13,928.56, 20,894.04 and 5,163.54 is: 7,745.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.56 : 20,894.04 = 5,163.54 : x
  2. Step 2: Convert to fraction form
    13,928.56/20,894.04 = 5,163.54/x
  3. Step 3: Cross multiply
    13,928.56x = 20,894.04 × 5,163.54
  4. Step 4: Simplify right side
    13,928.56x = 107,887,211.30
  5. Step 5: Solve for x
    x = 107,887,211.30/13,928.56
  6. Step 6: Final answer
    x = 7,745.75

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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.