Home / 18,231.91-27,336.92-7,125.36

Finding the Fourth Proportional to 18,231.91, 27,336.92 and 7,125.36

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Solution

The fourth proportional to 18,231.91, 27,336.92 and 7,125.36 is: 10,683.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.91 : 27,336.92 = 7,125.36 : x
  2. Step 2: Convert to fraction form
    18,231.91/27,336.92 = 7,125.36/x
  3. Step 3: Cross multiply
    18,231.91x = 27,336.92 × 7,125.36
  4. Step 4: Simplify right side
    18,231.91x = 194,785,301.23
  5. Step 5: Solve for x
    x = 194,785,301.23/18,231.91
  6. Step 6: Final answer
    x = 10,683.76

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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.