Home / 11,981.56-17,960.10-4,183.96

Finding the Fourth Proportional to 11,981.56, 17,960.10 and 4,183.96

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Solution

The fourth proportional to 11,981.56, 17,960.10 and 4,183.96 is: 6,271.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.56 : 17,960.10 = 4,183.96 : x
  2. Step 2: Convert to fraction form
    11,981.56/17,960.10 = 4,183.96/x
  3. Step 3: Cross multiply
    11,981.56x = 17,960.10 × 4,183.96
  4. Step 4: Simplify right side
    11,981.56x = 75,144,340.00
  5. Step 5: Solve for x
    x = 75,144,340.00/11,981.56
  6. Step 6: Final answer
    x = 6,271.67

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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.