Home / 12,163.58-18,228.22-5,745.32

Finding the Fourth Proportional to 12,163.58, 18,228.22 and 5,745.32

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Solution

The fourth proportional to 12,163.58, 18,228.22 and 5,745.32 is: 8,609.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.58 : 18,228.22 = 5,745.32 : x
  2. Step 2: Convert to fraction form
    12,163.58/18,228.22 = 5,745.32/x
  3. Step 3: Cross multiply
    12,163.58x = 18,228.22 × 5,745.32
  4. Step 4: Simplify right side
    12,163.58x = 104,726,956.93
  5. Step 5: Solve for x
    x = 104,726,956.93/12,163.58
  6. Step 6: Final answer
    x = 8,609.88

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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.