Home / 8,147.86-12,222.26-3,150.26

Finding the Fourth Proportional to 8,147.86, 12,222.26 and 3,150.26

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Solution

The fourth proportional to 8,147.86, 12,222.26 and 3,150.26 is: 4,725.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.86 : 12,222.26 = 3,150.26 : x
  2. Step 2: Convert to fraction form
    8,147.86/12,222.26 = 3,150.26/x
  3. Step 3: Cross multiply
    8,147.86x = 12,222.26 × 3,150.26
  4. Step 4: Simplify right side
    8,147.86x = 38,503,296.79
  5. Step 5: Solve for x
    x = 38,503,296.79/8,147.86
  6. Step 6: Final answer
    x = 4,725.57

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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.