Home / 11,213.08-16,819.64-3,421.96

Finding the Fourth Proportional to 11,213.08, 16,819.64 and 3,421.96

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Solution

The fourth proportional to 11,213.08, 16,819.64 and 3,421.96 is: 5,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.08 : 16,819.64 = 3,421.96 : x
  2. Step 2: Convert to fraction form
    11,213.08/16,819.64 = 3,421.96/x
  3. Step 3: Cross multiply
    11,213.08x = 16,819.64 × 3,421.96
  4. Step 4: Simplify right side
    11,213.08x = 57,556,135.29
  5. Step 5: Solve for x
    x = 57,556,135.29/11,213.08
  6. Step 6: Final answer
    x = 5,132.95

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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.