Home / 8,812.88-13,217.90-2,571.42

Finding the Fourth Proportional to 8,812.88, 13,217.90 and 2,571.42

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Solution

The fourth proportional to 8,812.88, 13,217.90 and 2,571.42 is: 3,856.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,812.88 : 13,217.90 = 2,571.42 : x
  2. Step 2: Convert to fraction form
    8,812.88/13,217.90 = 2,571.42/x
  3. Step 3: Cross multiply
    8,812.88x = 13,217.90 × 2,571.42
  4. Step 4: Simplify right side
    8,812.88x = 33,988,759.56
  5. Step 5: Solve for x
    x = 33,988,759.56/8,812.88
  6. Step 6: Final answer
    x = 3,856.72

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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.