Home / 12,758.28-19,137.42-6,951.79

Finding the Fourth Proportional to 12,758.28, 19,137.42 and 6,951.79

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Solution

The fourth proportional to 12,758.28, 19,137.42 and 6,951.79 is: 10,427.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,758.28 : 19,137.42 = 6,951.79 : x
  2. Step 2: Convert to fraction form
    12,758.28/19,137.42 = 6,951.79/x
  3. Step 3: Cross multiply
    12,758.28x = 19,137.42 × 6,951.79
  4. Step 4: Simplify right side
    12,758.28x = 133,039,324.98
  5. Step 5: Solve for x
    x = 133,039,324.98/12,758.28
  6. Step 6: Final answer
    x = 10,427.69

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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.