Home / 7,661.27-11,481.21-4,143.71

Finding the Fourth Proportional to 7,661.27, 11,481.21 and 4,143.71

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Solution

The fourth proportional to 7,661.27, 11,481.21 and 4,143.71 is: 6,209.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.27 : 11,481.21 = 4,143.71 : x
  2. Step 2: Convert to fraction form
    7,661.27/11,481.21 = 4,143.71/x
  3. Step 3: Cross multiply
    7,661.27x = 11,481.21 × 4,143.71
  4. Step 4: Simplify right side
    7,661.27x = 47,574,747.28
  5. Step 5: Solve for x
    x = 47,574,747.28/7,661.27
  6. Step 6: Final answer
    x = 6,209.78

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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.