Home / 6,766.78-9,338.16-4,113.70

Finding the Fourth Proportional to 6,766.78, 9,338.16 and 4,113.70

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Solution

The fourth proportional to 6,766.78, 9,338.16 and 4,113.70 is: 5,676.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,766.78 : 9,338.16 = 4,113.70 : x
  2. Step 2: Convert to fraction form
    6,766.78/9,338.16 = 4,113.70/x
  3. Step 3: Cross multiply
    6,766.78x = 9,338.16 × 4,113.70
  4. Step 4: Simplify right side
    6,766.78x = 38,414,388.79
  5. Step 5: Solve for x
    x = 38,414,388.79/6,766.78
  6. Step 6: Final answer
    x = 5,676.91

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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.