Home / 16,189.26-22,341.60-9,115.56

Finding the Fourth Proportional to 16,189.26, 22,341.60 and 9,115.56

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Solution

The fourth proportional to 16,189.26, 22,341.60 and 9,115.56 is: 12,579.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,189.26 : 22,341.60 = 9,115.56 : x
  2. Step 2: Convert to fraction form
    16,189.26/22,341.60 = 9,115.56/x
  3. Step 3: Cross multiply
    16,189.26x = 22,341.60 × 9,115.56
  4. Step 4: Simplify right side
    16,189.26x = 203,656,195.30
  5. Step 5: Solve for x
    x = 203,656,195.30/16,189.26
  6. Step 6: Final answer
    x = 12,579.71

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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.