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Finding the Fourth Proportional to 8,788.43, 13,187.84 and 3,245.67

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Solution

The fourth proportional to 8,788.43, 13,187.84 and 3,245.67 is: 4,870.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.43 : 13,187.84 = 3,245.67 : x
  2. Step 2: Convert to fraction form
    8,788.43/13,187.84 = 3,245.67/x
  3. Step 3: Cross multiply
    8,788.43x = 13,187.84 × 3,245.67
  4. Step 4: Simplify right side
    8,788.43x = 42,803,376.65
  5. Step 5: Solve for x
    x = 42,803,376.65/8,788.43
  6. Step 6: Final answer
    x = 4,870.42

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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.