Home / 13,578.23-20,367.33-3,717.59

Finding the Fourth Proportional to 13,578.23, 20,367.33 and 3,717.59

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Solution

The fourth proportional to 13,578.23, 20,367.33 and 3,717.59 is: 5,576.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578.23 : 20,367.33 = 3,717.59 : x
  2. Step 2: Convert to fraction form
    13,578.23/20,367.33 = 3,717.59/x
  3. Step 3: Cross multiply
    13,578.23x = 20,367.33 × 3,717.59
  4. Step 4: Simplify right side
    13,578.23x = 75,717,382.33
  5. Step 5: Solve for x
    x = 75,717,382.33/13,578.23
  6. Step 6: Final answer
    x = 5,576.38

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1.5x scale

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.