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Finding the Fourth Proportional to 8,806.16, 13,205.64 and 3,808.82

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Solution

The fourth proportional to 8,806.16, 13,205.64 and 3,808.82 is: 5,711.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.16 : 13,205.64 = 3,808.82 : x
  2. Step 2: Convert to fraction form
    8,806.16/13,205.64 = 3,808.82/x
  3. Step 3: Cross multiply
    8,806.16x = 13,205.64 × 3,808.82
  4. Step 4: Simplify right side
    8,806.16x = 50,297,905.74
  5. Step 5: Solve for x
    x = 50,297,905.74/8,806.16
  6. Step 6: Final answer
    x = 5,711.67

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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.