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Finding the Fourth Proportional to 7,757.00, 11,630.63 and 5,121.71

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Solution

The fourth proportional to 7,757.00, 11,630.63 and 5,121.71 is: 7,679.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,757.00 : 11,630.63 = 5,121.71 : x
  2. Step 2: Convert to fraction form
    7,757.00/11,630.63 = 5,121.71/x
  3. Step 3: Cross multiply
    7,757.00x = 11,630.63 × 5,121.71
  4. Step 4: Simplify right side
    7,757.00x = 59,568,630.22
  5. Step 5: Solve for x
    x = 59,568,630.22/7,757.00
  6. Step 6: Final answer
    x = 7,679.34

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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.