Home / 13,536.35-20,255.31-11,174.39

Finding the Fourth Proportional to 13,536.35, 20,255.31 and 11,174.39

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Solution

The fourth proportional to 13,536.35, 20,255.31 and 11,174.39 is: 16,720.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.35 : 20,255.31 = 11,174.39 : x
  2. Step 2: Convert to fraction form
    13,536.35/20,255.31 = 11,174.39/x
  3. Step 3: Cross multiply
    13,536.35x = 20,255.31 × 11,174.39
  4. Step 4: Simplify right side
    13,536.35x = 226,340,632.23
  5. Step 5: Solve for x
    x = 226,340,632.23/13,536.35
  6. Step 6: Final answer
    x = 16,720.96

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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.