Home / 8,138.44-12,203.62-2,591.06

Finding the Fourth Proportional to 8,138.44, 12,203.62 and 2,591.06

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Solution

The fourth proportional to 8,138.44, 12,203.62 and 2,591.06 is: 3,885.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.44 : 12,203.62 = 2,591.06 : x
  2. Step 2: Convert to fraction form
    8,138.44/12,203.62 = 2,591.06/x
  3. Step 3: Cross multiply
    8,138.44x = 12,203.62 × 2,591.06
  4. Step 4: Simplify right side
    8,138.44x = 31,620,342.15
  5. Step 5: Solve for x
    x = 31,620,342.15/8,138.44
  6. Step 6: Final answer
    x = 3,885.31

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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.