Home / 8,427.26-12,641.20-2,187.11

Finding the Fourth Proportional to 8,427.26, 12,641.20 and 2,187.11

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Solution

The fourth proportional to 8,427.26, 12,641.20 and 2,187.11 is: 3,280.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.26 : 12,641.20 = 2,187.11 : x
  2. Step 2: Convert to fraction form
    8,427.26/12,641.20 = 2,187.11/x
  3. Step 3: Cross multiply
    8,427.26x = 12,641.20 × 2,187.11
  4. Step 4: Simplify right side
    8,427.26x = 27,647,631.73
  5. Step 5: Solve for x
    x = 27,647,631.73/8,427.26
  6. Step 6: Final answer
    x = 3,280.74

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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.