Home / 13,855.82-20,785.68-4,492.69

Finding the Fourth Proportional to 13,855.82, 20,785.68 and 4,492.69

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Solution

The fourth proportional to 13,855.82, 20,785.68 and 4,492.69 is: 6,739.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.82 : 20,785.68 = 4,492.69 : x
  2. Step 2: Convert to fraction form
    13,855.82/20,785.68 = 4,492.69/x
  3. Step 3: Cross multiply
    13,855.82x = 20,785.68 × 4,492.69
  4. Step 4: Simplify right side
    13,855.82x = 93,383,564.72
  5. Step 5: Solve for x
    x = 93,383,564.72/13,855.82
  6. Step 6: Final answer
    x = 6,739.67

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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.