Home / 19,836.09-27,375.95-12,672.54

Finding the Fourth Proportional to 19,836.09, 27,375.95 and 12,672.54

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Solution

The fourth proportional to 19,836.09, 27,375.95 and 12,672.54 is: 17,489.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,836.09 : 27,375.95 = 12,672.54 : x
  2. Step 2: Convert to fraction form
    19,836.09/27,375.95 = 12,672.54/x
  3. Step 3: Cross multiply
    19,836.09x = 27,375.95 × 12,672.54
  4. Step 4: Simplify right side
    19,836.09x = 346,922,853.09
  5. Step 5: Solve for x
    x = 346,922,853.09/19,836.09
  6. Step 6: Final answer
    x = 17,489.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.