Home / 8,427.98-12,641.87-2,187.44

Finding the Fourth Proportional to 8,427.98, 12,641.87 and 2,187.44

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Solution

The fourth proportional to 8,427.98, 12,641.87 and 2,187.44 is: 3,281.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.98 : 12,641.87 = 2,187.44 : x
  2. Step 2: Convert to fraction form
    8,427.98/12,641.87 = 2,187.44/x
  3. Step 3: Cross multiply
    8,427.98x = 12,641.87 × 2,187.44
  4. Step 4: Simplify right side
    8,427.98x = 27,653,321.78
  5. Step 5: Solve for x
    x = 27,653,321.78/8,427.98
  6. Step 6: Final answer
    x = 3,281.13

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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.