Home / 11,928.75-17,893.80-3,163.74

Finding the Fourth Proportional to 11,928.75, 17,893.80 and 3,163.74

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Solution

The fourth proportional to 11,928.75, 17,893.80 and 3,163.74 is: 4,745.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.75 : 17,893.80 = 3,163.74 : x
  2. Step 2: Convert to fraction form
    11,928.75/17,893.80 = 3,163.74/x
  3. Step 3: Cross multiply
    11,928.75x = 17,893.80 × 3,163.74
  4. Step 4: Simplify right side
    11,928.75x = 56,611,330.81
  5. Step 5: Solve for x
    x = 56,611,330.81/11,928.75
  6. Step 6: Final answer
    x = 4,745.79

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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.