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Finding the Fourth Proportional to 11,928.16, 16,450.80 and 8,950.96

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Solution

The fourth proportional to 11,928.16, 16,450.80 and 8,950.96 is: 12,344.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.16 : 16,450.80 = 8,950.96 : x
  2. Step 2: Convert to fraction form
    11,928.16/16,450.80 = 8,950.96/x
  3. Step 3: Cross multiply
    11,928.16x = 16,450.80 × 8,950.96
  4. Step 4: Simplify right side
    11,928.16x = 147,250,452.77
  5. Step 5: Solve for x
    x = 147,250,452.77/11,928.16
  6. Step 6: Final answer
    x = 12,344.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.