Home / 18,849.91-28,270.45-5,519.94

Finding the Fourth Proportional to 18,849.91, 28,270.45 and 5,519.94

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Solution

The fourth proportional to 18,849.91, 28,270.45 and 5,519.94 is: 8,278.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,849.91 : 28,270.45 = 5,519.94 : x
  2. Step 2: Convert to fraction form
    18,849.91/28,270.45 = 5,519.94/x
  3. Step 3: Cross multiply
    18,849.91x = 28,270.45 × 5,519.94
  4. Step 4: Simplify right side
    18,849.91x = 156,051,046.42
  5. Step 5: Solve for x
    x = 156,051,046.42/18,849.91
  6. Step 6: Final answer
    x = 8,278.61

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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.