Home / 8,949.78-12,351.69-5,414.94

Finding the Fourth Proportional to 8,949.78, 12,351.69 and 5,414.94

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Solution

The fourth proportional to 8,949.78, 12,351.69 and 5,414.94 is: 7,473.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.78 : 12,351.69 = 5,414.94 : x
  2. Step 2: Convert to fraction form
    8,949.78/12,351.69 = 5,414.94/x
  3. Step 3: Cross multiply
    8,949.78x = 12,351.69 × 5,414.94
  4. Step 4: Simplify right side
    8,949.78x = 66,883,660.25
  5. Step 5: Solve for x
    x = 66,883,660.25/8,949.78
  6. Step 6: Final answer
    x = 7,473.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.