Home / 8,106.76-12,161.99-2,560.08

Finding the Fourth Proportional to 8,106.76, 12,161.99 and 2,560.08

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Solution

The fourth proportional to 8,106.76, 12,161.99 and 2,560.08 is: 3,840.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.76 : 12,161.99 = 2,560.08 : x
  2. Step 2: Convert to fraction form
    8,106.76/12,161.99 = 2,560.08/x
  3. Step 3: Cross multiply
    8,106.76x = 12,161.99 × 2,560.08
  4. Step 4: Simplify right side
    8,106.76x = 31,135,673.76
  5. Step 5: Solve for x
    x = 31,135,673.76/8,106.76
  6. Step 6: Final answer
    x = 3,840.71

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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.