Home / 6,517.80-8,993.96-3,864.78

Finding the Fourth Proportional to 6,517.80, 8,993.96 and 3,864.78

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Solution

The fourth proportional to 6,517.80, 8,993.96 and 3,864.78 is: 5,333.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,517.80 : 8,993.96 = 3,864.78 : x
  2. Step 2: Convert to fraction form
    6,517.80/8,993.96 = 3,864.78/x
  3. Step 3: Cross multiply
    6,517.80x = 8,993.96 × 3,864.78
  4. Step 4: Simplify right side
    6,517.80x = 34,759,676.73
  5. Step 5: Solve for x
    x = 34,759,676.73/6,517.80
  6. Step 6: Final answer
    x = 5,333.04

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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.