Home / 8,154.91-12,234.39-2,311.57

Finding the Fourth Proportional to 8,154.91, 12,234.39 and 2,311.57

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Solution

The fourth proportional to 8,154.91, 12,234.39 and 2,311.57 is: 3,467.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.91 : 12,234.39 = 2,311.57 : x
  2. Step 2: Convert to fraction form
    8,154.91/12,234.39 = 2,311.57/x
  3. Step 3: Cross multiply
    8,154.91x = 12,234.39 × 2,311.57
  4. Step 4: Simplify right side
    8,154.91x = 28,280,648.89
  5. Step 5: Solve for x
    x = 28,280,648.89/8,154.91
  6. Step 6: Final answer
    x = 3,467.93

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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.