Home / 8,813.88-12,163.67-5,229.93

Finding the Fourth Proportional to 8,813.88, 12,163.67 and 5,229.93

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Solution

The fourth proportional to 8,813.88, 12,163.67 and 5,229.93 is: 7,217.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.88 : 12,163.67 = 5,229.93 : x
  2. Step 2: Convert to fraction form
    8,813.88/12,163.67 = 5,229.93/x
  3. Step 3: Cross multiply
    8,813.88x = 12,163.67 × 5,229.93
  4. Step 4: Simplify right side
    8,813.88x = 63,615,181.72
  5. Step 5: Solve for x
    x = 63,615,181.72/8,813.88
  6. Step 6: Final answer
    x = 7,217.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.