Home / 8,178.09-12,265.31-3,793.16

Finding the Fourth Proportional to 8,178.09, 12,265.31 and 3,793.16

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Solution

The fourth proportional to 8,178.09, 12,265.31 and 3,793.16 is: 5,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.09 : 12,265.31 = 3,793.16 : x
  2. Step 2: Convert to fraction form
    8,178.09/12,265.31 = 3,793.16/x
  3. Step 3: Cross multiply
    8,178.09x = 12,265.31 × 3,793.16
  4. Step 4: Simplify right side
    8,178.09x = 46,524,231.44
  5. Step 5: Solve for x
    x = 46,524,231.44/8,178.09
  6. Step 6: Final answer
    x = 5,688.89

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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.