Home / 8,371.21-12,556.41-3,107.25

Finding the Fourth Proportional to 8,371.21, 12,556.41 and 3,107.25

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Solution

The fourth proportional to 8,371.21, 12,556.41 and 3,107.25 is: 4,660.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.21 : 12,556.41 = 3,107.25 : x
  2. Step 2: Convert to fraction form
    8,371.21/12,556.41 = 3,107.25/x
  3. Step 3: Cross multiply
    8,371.21x = 12,556.41 × 3,107.25
  4. Step 4: Simplify right side
    8,371.21x = 39,015,904.97
  5. Step 5: Solve for x
    x = 39,015,904.97/8,371.21
  6. Step 6: Final answer
    x = 4,660.72

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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.