Home / 7,844.78-11,766.63-3,678.95

Finding the Fourth Proportional to 7,844.78, 11,766.63 and 3,678.95

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Solution

The fourth proportional to 7,844.78, 11,766.63 and 3,678.95 is: 5,518.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,844.78 : 11,766.63 = 3,678.95 : x
  2. Step 2: Convert to fraction form
    7,844.78/11,766.63 = 3,678.95/x
  3. Step 3: Cross multiply
    7,844.78x = 11,766.63 × 3,678.95
  4. Step 4: Simplify right side
    7,844.78x = 43,288,843.44
  5. Step 5: Solve for x
    x = 43,288,843.44/7,844.78
  6. Step 6: Final answer
    x = 5,518.17

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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.