Home / 12,717.90-19,078.92-3,954.87

Finding the Fourth Proportional to 12,717.90, 19,078.92 and 3,954.87

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Solution

The fourth proportional to 12,717.90, 19,078.92 and 3,954.87 is: 5,932.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,717.90 : 19,078.92 = 3,954.87 : x
  2. Step 2: Convert to fraction form
    12,717.90/19,078.92 = 3,954.87/x
  3. Step 3: Cross multiply
    12,717.90x = 19,078.92 × 3,954.87
  4. Step 4: Simplify right side
    12,717.90x = 75,454,648.34
  5. Step 5: Solve for x
    x = 75,454,648.34/12,717.90
  6. Step 6: Final answer
    x = 5,932.95

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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.