Home / 13,311.92-19,942.34-7,450.76

Finding the Fourth Proportional to 13,311.92, 19,942.34 and 7,450.76

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Solution

The fourth proportional to 13,311.92, 19,942.34 and 7,450.76 is: 11,161.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.92 : 19,942.34 = 7,450.76 : x
  2. Step 2: Convert to fraction form
    13,311.92/19,942.34 = 7,450.76/x
  3. Step 3: Cross multiply
    13,311.92x = 19,942.34 × 7,450.76
  4. Step 4: Simplify right side
    13,311.92x = 148,585,589.18
  5. Step 5: Solve for x
    x = 148,585,589.18/13,311.92
  6. Step 6: Final answer
    x = 11,161.85

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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.