Home / 11,619.78-17,436-5,045.94

Finding the Fourth Proportional to 11,619.78, 17,436 and 5,045.94

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Solution

The fourth proportional to 11,619.78, 17,436 and 5,045.94 is: 7,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.78 : 17,436 = 5,045.94 : x
  2. Step 2: Convert to fraction form
    11,619.78/17,436 = 5,045.94/x
  3. Step 3: Cross multiply
    11,619.78x = 17,436 × 5,045.94
  4. Step 4: Simplify right side
    11,619.78x = 87,981,009.84
  5. Step 5: Solve for x
    x = 87,981,009.84/11,619.78
  6. Step 6: Final answer
    x = 7,571.66

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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.