Home / 18,439.68-27,663.03-10,115.19

Finding the Fourth Proportional to 18,439.68, 27,663.03 and 10,115.19

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Solution

The fourth proportional to 18,439.68, 27,663.03 and 10,115.19 is: 15,174.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439.68 : 27,663.03 = 10,115.19 : x
  2. Step 2: Convert to fraction form
    18,439.68/27,663.03 = 10,115.19/x
  3. Step 3: Cross multiply
    18,439.68x = 27,663.03 × 10,115.19
  4. Step 4: Simplify right side
    18,439.68x = 279,816,804.43
  5. Step 5: Solve for x
    x = 279,816,804.43/18,439.68
  6. Step 6: Final answer
    x = 15,174.71

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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.