Home / 7,825.20-11,738.98-3,384.08

Finding the Fourth Proportional to 7,825.20, 11,738.98 and 3,384.08

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Solution

The fourth proportional to 7,825.20, 11,738.98 and 3,384.08 is: 5,076.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.20 : 11,738.98 = 3,384.08 : x
  2. Step 2: Convert to fraction form
    7,825.20/11,738.98 = 3,384.08/x
  3. Step 3: Cross multiply
    7,825.20x = 11,738.98 × 3,384.08
  4. Step 4: Simplify right side
    7,825.20x = 39,725,647.44
  5. Step 5: Solve for x
    x = 39,725,647.44/7,825.20
  6. Step 6: Final answer
    x = 5,076.63

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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.