Home / 9,178.84-13,758.44-3,629.78

Finding the Fourth Proportional to 9,178.84, 13,758.44 and 3,629.78

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Solution

The fourth proportional to 9,178.84, 13,758.44 and 3,629.78 is: 5,440.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,178.84 : 13,758.44 = 3,629.78 : x
  2. Step 2: Convert to fraction form
    9,178.84/13,758.44 = 3,629.78/x
  3. Step 3: Cross multiply
    9,178.84x = 13,758.44 × 3,629.78
  4. Step 4: Simplify right side
    9,178.84x = 49,940,110.34
  5. Step 5: Solve for x
    x = 49,940,110.34/9,178.84
  6. Step 6: Final answer
    x = 5,440.79

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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.