Home / 18,849.73-28,284.32-7,764.61

Finding the Fourth Proportional to 18,849.73, 28,284.32 and 7,764.61

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Solution

The fourth proportional to 18,849.73, 28,284.32 and 7,764.61 is: 11,650.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,849.73 : 28,284.32 = 7,764.61 : x
  2. Step 2: Convert to fraction form
    18,849.73/28,284.32 = 7,764.61/x
  3. Step 3: Cross multiply
    18,849.73x = 28,284.32 × 7,764.61
  4. Step 4: Simplify right side
    18,849.73x = 219,616,675.09
  5. Step 5: Solve for x
    x = 219,616,675.09/18,849.73
  6. Step 6: Final answer
    x = 11,650.92

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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.