Home / 8,106.92-12,160.38-2,911.56

Finding the Fourth Proportional to 8,106.92, 12,160.38 and 2,911.56

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Solution

The fourth proportional to 8,106.92, 12,160.38 and 2,911.56 is: 4,367.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.92 : 12,160.38 = 2,911.56 : x
  2. Step 2: Convert to fraction form
    8,106.92/12,160.38 = 2,911.56/x
  3. Step 3: Cross multiply
    8,106.92x = 12,160.38 × 2,911.56
  4. Step 4: Simplify right side
    8,106.92x = 35,405,675.99
  5. Step 5: Solve for x
    x = 35,405,675.99/8,106.92
  6. Step 6: Final answer
    x = 4,367.34

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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.