Home / 18,253.09-27,379.68-5,105.44

Finding the Fourth Proportional to 18,253.09, 27,379.68 and 5,105.44

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Solution

The fourth proportional to 18,253.09, 27,379.68 and 5,105.44 is: 7,658.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.09 : 27,379.68 = 5,105.44 : x
  2. Step 2: Convert to fraction form
    18,253.09/27,379.68 = 5,105.44/x
  3. Step 3: Cross multiply
    18,253.09x = 27,379.68 × 5,105.44
  4. Step 4: Simplify right side
    18,253.09x = 139,785,313.46
  5. Step 5: Solve for x
    x = 139,785,313.46/18,253.09
  6. Step 6: Final answer
    x = 7,658.17

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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.