Home / 18,198.35-27,298.70-5,718.89

Finding the Fourth Proportional to 18,198.35, 27,298.70 and 5,718.89

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Solution

The fourth proportional to 18,198.35, 27,298.70 and 5,718.89 is: 8,578.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198.35 : 27,298.70 = 5,718.89 : x
  2. Step 2: Convert to fraction form
    18,198.35/27,298.70 = 5,718.89/x
  3. Step 3: Cross multiply
    18,198.35x = 27,298.70 × 5,718.89
  4. Step 4: Simplify right side
    18,198.35x = 156,118,269.07
  5. Step 5: Solve for x
    x = 156,118,269.07/18,198.35
  6. Step 6: Final answer
    x = 8,578.71

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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.