Home / 18,118.92-27,186.24-9,804.78

Finding the Fourth Proportional to 18,118.92, 27,186.24 and 9,804.78

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Solution

The fourth proportional to 18,118.92, 27,186.24 and 9,804.78 is: 14,711.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.92 : 27,186.24 = 9,804.78 : x
  2. Step 2: Convert to fraction form
    18,118.92/27,186.24 = 9,804.78/x
  3. Step 3: Cross multiply
    18,118.92x = 27,186.24 × 9,804.78
  4. Step 4: Simplify right side
    18,118.92x = 266,555,102.23
  5. Step 5: Solve for x
    x = 266,555,102.23/18,118.92
  6. Step 6: Final answer
    x = 14,711.42

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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.