Home / 8,154.50-12,231.72-2,311.11

Finding the Fourth Proportional to 8,154.50, 12,231.72 and 2,311.11

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Solution

The fourth proportional to 8,154.50, 12,231.72 and 2,311.11 is: 3,466.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.50 : 12,231.72 = 2,311.11 : x
  2. Step 2: Convert to fraction form
    8,154.50/12,231.72 = 2,311.11/x
  3. Step 3: Cross multiply
    8,154.50x = 12,231.72 × 2,311.11
  4. Step 4: Simplify right side
    8,154.50x = 28,268,850.41
  5. Step 5: Solve for x
    x = 28,268,850.41/8,154.50
  6. Step 6: Final answer
    x = 3,466.66

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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.