Home / 8,239.59-12,351.83-3,306.15

Finding the Fourth Proportional to 8,239.59, 12,351.83 and 3,306.15

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Solution

The fourth proportional to 8,239.59, 12,351.83 and 3,306.15 is: 4,956.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239.59 : 12,351.83 = 3,306.15 : x
  2. Step 2: Convert to fraction form
    8,239.59/12,351.83 = 3,306.15/x
  3. Step 3: Cross multiply
    8,239.59x = 12,351.83 × 3,306.15
  4. Step 4: Simplify right side
    8,239.59x = 40,836,986.22
  5. Step 5: Solve for x
    x = 40,836,986.22/8,239.59
  6. Step 6: Final answer
    x = 4,956.19

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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.