Home / 18,399.12-27,598.68-11,005.74

Finding the Fourth Proportional to 18,399.12, 27,598.68 and 11,005.74

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Solution

The fourth proportional to 18,399.12, 27,598.68 and 11,005.74 is: 16,508.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.12 : 27,598.68 = 11,005.74 : x
  2. Step 2: Convert to fraction form
    18,399.12/27,598.68 = 11,005.74/x
  3. Step 3: Cross multiply
    18,399.12x = 27,598.68 × 11,005.74
  4. Step 4: Simplify right side
    18,399.12x = 303,743,896.42
  5. Step 5: Solve for x
    x = 303,743,896.42/18,399.12
  6. Step 6: Final answer
    x = 16,508.61

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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.