Home / 8,371.12-12,556.26-3,107.15

Finding the Fourth Proportional to 8,371.12, 12,556.26 and 3,107.15

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Solution

The fourth proportional to 8,371.12, 12,556.26 and 3,107.15 is: 4,660.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.12 : 12,556.26 = 3,107.15 : x
  2. Step 2: Convert to fraction form
    8,371.12/12,556.26 = 3,107.15/x
  3. Step 3: Cross multiply
    8,371.12x = 12,556.26 × 3,107.15
  4. Step 4: Simplify right side
    8,371.12x = 39,014,183.26
  5. Step 5: Solve for x
    x = 39,014,183.26/8,371.12
  6. Step 6: Final answer
    x = 4,660.57

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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.