Home / 8,135.18-12,197.34-2,940.38

Finding the Fourth Proportional to 8,135.18, 12,197.34 and 2,940.38

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Solution

The fourth proportional to 8,135.18, 12,197.34 and 2,940.38 is: 4,408.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.18 : 12,197.34 = 2,940.38 : x
  2. Step 2: Convert to fraction form
    8,135.18/12,197.34 = 2,940.38/x
  3. Step 3: Cross multiply
    8,135.18x = 12,197.34 × 2,940.38
  4. Step 4: Simplify right side
    8,135.18x = 35,864,814.59
  5. Step 5: Solve for x
    x = 35,864,814.59/8,135.18
  6. Step 6: Final answer
    x = 4,408.61

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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.