Home / 18,211.14-27,296.66-7,115.76

Finding the Fourth Proportional to 18,211.14, 27,296.66 and 7,115.76

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Solution

The fourth proportional to 18,211.14, 27,296.66 and 7,115.76 is: 10,665.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.14 : 27,296.66 = 7,115.76 : x
  2. Step 2: Convert to fraction form
    18,211.14/27,296.66 = 7,115.76/x
  3. Step 3: Cross multiply
    18,211.14x = 27,296.66 × 7,115.76
  4. Step 4: Simplify right side
    18,211.14x = 194,236,499.15
  5. Step 5: Solve for x
    x = 194,236,499.15/18,211.14
  6. Step 6: Final answer
    x = 10,665.81

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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.