Home / 6,800.18-9,390.24-4,286.78

Finding the Fourth Proportional to 6,800.18, 9,390.24 and 4,286.78

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Solution

The fourth proportional to 6,800.18, 9,390.24 and 4,286.78 is: 5,919.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,800.18 : 9,390.24 = 4,286.78 : x
  2. Step 2: Convert to fraction form
    6,800.18/9,390.24 = 4,286.78/x
  3. Step 3: Cross multiply
    6,800.18x = 9,390.24 × 4,286.78
  4. Step 4: Simplify right side
    6,800.18x = 40,253,893.03
  5. Step 5: Solve for x
    x = 40,253,893.03/6,800.18
  6. Step 6: Final answer
    x = 5,919.53

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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.