Home / 11,147.88-16,729.92-8,982.76

Finding the Fourth Proportional to 11,147.88, 16,729.92 and 8,982.76

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Solution

The fourth proportional to 11,147.88, 16,729.92 and 8,982.76 is: 13,480.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.88 : 16,729.92 = 8,982.76 : x
  2. Step 2: Convert to fraction form
    11,147.88/16,729.92 = 8,982.76/x
  3. Step 3: Cross multiply
    11,147.88x = 16,729.92 × 8,982.76
  4. Step 4: Simplify right side
    11,147.88x = 150,280,856.18
  5. Step 5: Solve for x
    x = 150,280,856.18/11,147.88
  6. Step 6: Final answer
    x = 13,480.67

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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.