Home / 7,418.68-11,128.04-3,036.56

Finding the Fourth Proportional to 7,418.68, 11,128.04 and 3,036.56

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Solution

The fourth proportional to 7,418.68, 11,128.04 and 3,036.56 is: 4,554.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.68 : 11,128.04 = 3,036.56 : x
  2. Step 2: Convert to fraction form
    7,418.68/11,128.04 = 3,036.56/x
  3. Step 3: Cross multiply
    7,418.68x = 11,128.04 × 3,036.56
  4. Step 4: Simplify right side
    7,418.68x = 33,790,961.14
  5. Step 5: Solve for x
    x = 33,790,961.14/7,418.68
  6. Step 6: Final answer
    x = 4,554.85

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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.