Home / 7,634.84-11,446.26-5,138.78

Finding the Fourth Proportional to 7,634.84, 11,446.26 and 5,138.78

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Solution

The fourth proportional to 7,634.84, 11,446.26 and 5,138.78 is: 7,704.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,634.84 : 11,446.26 = 5,138.78 : x
  2. Step 2: Convert to fraction form
    7,634.84/11,446.26 = 5,138.78/x
  3. Step 3: Cross multiply
    7,634.84x = 11,446.26 × 5,138.78
  4. Step 4: Simplify right side
    7,634.84x = 58,819,764.37
  5. Step 5: Solve for x
    x = 58,819,764.37/7,634.84
  6. Step 6: Final answer
    x = 7,704.12

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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.