Home / 8,813.22-13,219.64-2,149.73

Finding the Fourth Proportional to 8,813.22, 13,219.64 and 2,149.73

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Solution

The fourth proportional to 8,813.22, 13,219.64 and 2,149.73 is: 3,224.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.22 : 13,219.64 = 2,149.73 : x
  2. Step 2: Convert to fraction form
    8,813.22/13,219.64 = 2,149.73/x
  3. Step 3: Cross multiply
    8,813.22x = 13,219.64 × 2,149.73
  4. Step 4: Simplify right side
    8,813.22x = 28,418,711.85
  5. Step 5: Solve for x
    x = 28,418,711.85/8,813.22
  6. Step 6: Final answer
    x = 3,224.56

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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.