Home / 7,618.82-11,427.03-2,687.73

Finding the Fourth Proportional to 7,618.82, 11,427.03 and 2,687.73

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Solution

The fourth proportional to 7,618.82, 11,427.03 and 2,687.73 is: 4,031.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.82 : 11,427.03 = 2,687.73 : x
  2. Step 2: Convert to fraction form
    7,618.82/11,427.03 = 2,687.73/x
  3. Step 3: Cross multiply
    7,618.82x = 11,427.03 × 2,687.73
  4. Step 4: Simplify right side
    7,618.82x = 30,712,771.34
  5. Step 5: Solve for x
    x = 30,712,771.34/7,618.82
  6. Step 6: Final answer
    x = 4,031.17

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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.