Home / 8,218.52-12,336.55-3,540.85

Finding the Fourth Proportional to 8,218.52, 12,336.55 and 3,540.85

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Solution

The fourth proportional to 8,218.52, 12,336.55 and 3,540.85 is: 5,315.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.52 : 12,336.55 = 3,540.85 : x
  2. Step 2: Convert to fraction form
    8,218.52/12,336.55 = 3,540.85/x
  3. Step 3: Cross multiply
    8,218.52x = 12,336.55 × 3,540.85
  4. Step 4: Simplify right side
    8,218.52x = 43,681,811.38
  5. Step 5: Solve for x
    x = 43,681,811.38/8,218.52
  6. Step 6: Final answer
    x = 5,315.05

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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.