Home / 8,131.19-12,198.50-2,865.98

Finding the Fourth Proportional to 8,131.19, 12,198.50 and 2,865.98

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Solution

The fourth proportional to 8,131.19, 12,198.50 and 2,865.98 is: 4,299.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.19 : 12,198.50 = 2,865.98 : x
  2. Step 2: Convert to fraction form
    8,131.19/12,198.50 = 2,865.98/x
  3. Step 3: Cross multiply
    8,131.19x = 12,198.50 × 2,865.98
  4. Step 4: Simplify right side
    8,131.19x = 34,960,683.94
  5. Step 5: Solve for x
    x = 34,960,683.94/8,131.19
  6. Step 6: Final answer
    x = 4,299.58

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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.