Home / 13,212.11-19,819.89-4,324.39

Finding the Fourth Proportional to 13,212.11, 19,819.89 and 4,324.39

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Solution

The fourth proportional to 13,212.11, 19,819.89 and 4,324.39 is: 6,487.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.11 : 19,819.89 = 4,324.39 : x
  2. Step 2: Convert to fraction form
    13,212.11/19,819.89 = 4,324.39/x
  3. Step 3: Cross multiply
    13,212.11x = 19,819.89 × 4,324.39
  4. Step 4: Simplify right side
    13,212.11x = 85,708,884.57
  5. Step 5: Solve for x
    x = 85,708,884.57/13,212.11
  6. Step 6: Final answer
    x = 6,487.14

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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.