Home / 7,809.27-11,712.60-3,425.55

Finding the Fourth Proportional to 7,809.27, 11,712.60 and 3,425.55

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Solution

The fourth proportional to 7,809.27, 11,712.60 and 3,425.55 is: 5,137.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.27 : 11,712.60 = 3,425.55 : x
  2. Step 2: Convert to fraction form
    7,809.27/11,712.60 = 3,425.55/x
  3. Step 3: Cross multiply
    7,809.27x = 11,712.60 × 3,425.55
  4. Step 4: Simplify right side
    7,809.27x = 40,122,096.93
  5. Step 5: Solve for x
    x = 40,122,096.93/7,809.27
  6. Step 6: Final answer
    x = 5,137.75

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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.