Home / 18,299.36-27,428.13-8,311.73

Finding the Fourth Proportional to 18,299.36, 27,428.13 and 8,311.73

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Solution

The fourth proportional to 18,299.36, 27,428.13 and 8,311.73 is: 12,458.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.36 : 27,428.13 = 8,311.73 : x
  2. Step 2: Convert to fraction form
    18,299.36/27,428.13 = 8,311.73/x
  3. Step 3: Cross multiply
    18,299.36x = 27,428.13 × 8,311.73
  4. Step 4: Simplify right side
    18,299.36x = 227,975,073.82
  5. Step 5: Solve for x
    x = 227,975,073.82/18,299.36
  6. Step 6: Final answer
    x = 12,458.09

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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.