Home / 8,428.38-12,644.19-3,233.85

Finding the Fourth Proportional to 8,428.38, 12,644.19 and 3,233.85

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Solution

The fourth proportional to 8,428.38, 12,644.19 and 3,233.85 is: 4,851.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,428.38 : 12,644.19 = 3,233.85 : x
  2. Step 2: Convert to fraction form
    8,428.38/12,644.19 = 3,233.85/x
  3. Step 3: Cross multiply
    8,428.38x = 12,644.19 × 3,233.85
  4. Step 4: Simplify right side
    8,428.38x = 40,889,382.22
  5. Step 5: Solve for x
    x = 40,889,382.22/8,428.38
  6. Step 6: Final answer
    x = 4,851.39

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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.