Home / 13,636.05-18,819.66-11,394.37

Finding the Fourth Proportional to 13,636.05, 18,819.66 and 11,394.37

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Solution

The fourth proportional to 13,636.05, 18,819.66 and 11,394.37 is: 15,725.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.05 : 18,819.66 = 11,394.37 : x
  2. Step 2: Convert to fraction form
    13,636.05/18,819.66 = 11,394.37/x
  3. Step 3: Cross multiply
    13,636.05x = 18,819.66 × 11,394.37
  4. Step 4: Simplify right side
    13,636.05x = 214,438,169.31
  5. Step 5: Solve for x
    x = 214,438,169.31/13,636.05
  6. Step 6: Final answer
    x = 15,725.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.