Home / 8,161.79-12,241.19-3,718.42

Finding the Fourth Proportional to 8,161.79, 12,241.19 and 3,718.42

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Solution

The fourth proportional to 8,161.79, 12,241.19 and 3,718.42 is: 5,576.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.79 : 12,241.19 = 3,718.42 : x
  2. Step 2: Convert to fraction form
    8,161.79/12,241.19 = 3,718.42/x
  3. Step 3: Cross multiply
    8,161.79x = 12,241.19 × 3,718.42
  4. Step 4: Simplify right side
    8,161.79x = 45,517,864.41
  5. Step 5: Solve for x
    x = 45,517,864.41/8,161.79
  6. Step 6: Final answer
    x = 5,576.95

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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.