Home / 18,191.22-25,103.34-11,025.38

Finding the Fourth Proportional to 18,191.22, 25,103.34 and 11,025.38

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Solution

The fourth proportional to 18,191.22, 25,103.34 and 11,025.38 is: 15,214.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191.22 : 25,103.34 = 11,025.38 : x
  2. Step 2: Convert to fraction form
    18,191.22/25,103.34 = 11,025.38/x
  3. Step 3: Cross multiply
    18,191.22x = 25,103.34 × 11,025.38
  4. Step 4: Simplify right side
    18,191.22x = 276,773,737.25
  5. Step 5: Solve for x
    x = 276,773,737.25/18,191.22
  6. Step 6: Final answer
    x = 15,214.69

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Half scale
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Double scale
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Similar ratio
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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.