Home / 12,718.15-19,078.44-3,950.71

Finding the Fourth Proportional to 12,718.15, 19,078.44 and 3,950.71

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Solution

The fourth proportional to 12,718.15, 19,078.44 and 3,950.71 is: 5,926.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.15 : 19,078.44 = 3,950.71 : x
  2. Step 2: Convert to fraction form
    12,718.15/19,078.44 = 3,950.71/x
  3. Step 3: Cross multiply
    12,718.15x = 19,078.44 × 3,950.71
  4. Step 4: Simplify right side
    12,718.15x = 75,373,383.69
  5. Step 5: Solve for x
    x = 75,373,383.69/12,718.15
  6. Step 6: Final answer
    x = 5,926.44

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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.