Home / 18,375.96-25,358.79-11,205.86

Finding the Fourth Proportional to 18,375.96, 25,358.79 and 11,205.86

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Solution

The fourth proportional to 18,375.96, 25,358.79 and 11,205.86 is: 15,464.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,375.96 : 25,358.79 = 11,205.86 : x
  2. Step 2: Convert to fraction form
    18,375.96/25,358.79 = 11,205.86/x
  3. Step 3: Cross multiply
    18,375.96x = 25,358.79 × 11,205.86
  4. Step 4: Simplify right side
    18,375.96x = 284,166,987.11
  5. Step 5: Solve for x
    x = 284,166,987.11/18,375.96
  6. Step 6: Final answer
    x = 15,464.07

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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.