Home / 8,147.09-12,222.45-2,600.75

Finding the Fourth Proportional to 8,147.09, 12,222.45 and 2,600.75

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Solution

The fourth proportional to 8,147.09, 12,222.45 and 2,600.75 is: 3,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.09 : 12,222.45 = 2,600.75 : x
  2. Step 2: Convert to fraction form
    8,147.09/12,222.45 = 2,600.75/x
  3. Step 3: Cross multiply
    8,147.09x = 12,222.45 × 2,600.75
  4. Step 4: Simplify right side
    8,147.09x = 31,787,536.84
  5. Step 5: Solve for x
    x = 31,787,536.84/8,147.09
  6. Step 6: Final answer
    x = 3,901.70

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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.