Home / 12,576.14-18,866.94-3,811.73

Finding the Fourth Proportional to 12,576.14, 18,866.94 and 3,811.73

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Solution

The fourth proportional to 12,576.14, 18,866.94 and 3,811.73 is: 5,718.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576.14 : 18,866.94 = 3,811.73 : x
  2. Step 2: Convert to fraction form
    12,576.14/18,866.94 = 3,811.73/x
  3. Step 3: Cross multiply
    12,576.14x = 18,866.94 × 3,811.73
  4. Step 4: Simplify right side
    12,576.14x = 71,915,681.21
  5. Step 5: Solve for x
    x = 71,915,681.21/12,576.14
  6. Step 6: Final answer
    x = 5,718.42

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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.