Home / 8,108.36-12,163.90-2,560.40

Finding the Fourth Proportional to 8,108.36, 12,163.90 and 2,560.40

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Solution

The fourth proportional to 8,108.36, 12,163.90 and 2,560.40 is: 3,841.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.36 : 12,163.90 = 2,560.40 : x
  2. Step 2: Convert to fraction form
    8,108.36/12,163.90 = 2,560.40/x
  3. Step 3: Cross multiply
    8,108.36x = 12,163.90 × 2,560.40
  4. Step 4: Simplify right side
    8,108.36x = 31,144,449.56
  5. Step 5: Solve for x
    x = 31,144,449.56/8,108.36
  6. Step 6: Final answer
    x = 3,841.03

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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.