Home / 18,181.12-27,225.60-11,234.56

Finding the Fourth Proportional to 18,181.12, 27,225.60 and 11,234.56

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Solution

The fourth proportional to 18,181.12, 27,225.60 and 11,234.56 is: 16,823.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181.12 : 27,225.60 = 11,234.56 : x
  2. Step 2: Convert to fraction form
    18,181.12/27,225.60 = 11,234.56/x
  3. Step 3: Cross multiply
    18,181.12x = 27,225.60 × 11,234.56
  4. Step 4: Simplify right side
    18,181.12x = 305,867,636.74
  5. Step 5: Solve for x
    x = 305,867,636.74/18,181.12
  6. Step 6: Final answer
    x = 16,823.37

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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.