Home / 8,285.36-12,427.97-3,900.42

Finding the Fourth Proportional to 8,285.36, 12,427.97 and 3,900.42

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Solution

The fourth proportional to 8,285.36, 12,427.97 and 3,900.42 is: 5,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.36 : 12,427.97 = 3,900.42 : x
  2. Step 2: Convert to fraction form
    8,285.36/12,427.97 = 3,900.42/x
  3. Step 3: Cross multiply
    8,285.36x = 12,427.97 × 3,900.42
  4. Step 4: Simplify right side
    8,285.36x = 48,474,283.25
  5. Step 5: Solve for x
    x = 48,474,283.25/8,285.36
  6. Step 6: Final answer
    x = 5,850.60

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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.