Home / 12,575.71-18,863.52-3,811.33

Finding the Fourth Proportional to 12,575.71, 18,863.52 and 3,811.33

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Solution

The fourth proportional to 12,575.71, 18,863.52 and 3,811.33 is: 5,716.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,575.71 : 18,863.52 = 3,811.33 : x
  2. Step 2: Convert to fraction form
    12,575.71/18,863.52 = 3,811.33/x
  3. Step 3: Cross multiply
    12,575.71x = 18,863.52 × 3,811.33
  4. Step 4: Simplify right side
    12,575.71x = 71,895,099.68
  5. Step 5: Solve for x
    x = 71,895,099.68/12,575.71
  6. Step 6: Final answer
    x = 5,716.98

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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.