Home / 7,665.25-11,500.65-3,772.39

Finding the Fourth Proportional to 7,665.25, 11,500.65 and 3,772.39

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Solution

The fourth proportional to 7,665.25, 11,500.65 and 3,772.39 is: 5,659.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.25 : 11,500.65 = 3,772.39 : x
  2. Step 2: Convert to fraction form
    7,665.25/11,500.65 = 3,772.39/x
  3. Step 3: Cross multiply
    7,665.25x = 11,500.65 × 3,772.39
  4. Step 4: Simplify right side
    7,665.25x = 43,384,937.05
  5. Step 5: Solve for x
    x = 43,384,937.05/7,665.25
  6. Step 6: Final answer
    x = 5,659.95

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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.