Home / 13,672.44-20,513.84-5,358.42

Finding the Fourth Proportional to 13,672.44, 20,513.84 and 5,358.42

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Solution

The fourth proportional to 13,672.44, 20,513.84 and 5,358.42 is: 8,039.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.44 : 20,513.84 = 5,358.42 : x
  2. Step 2: Convert to fraction form
    13,672.44/20,513.84 = 5,358.42/x
  3. Step 3: Cross multiply
    13,672.44x = 20,513.84 × 5,358.42
  4. Step 4: Simplify right side
    13,672.44x = 109,921,743.74
  5. Step 5: Solve for x
    x = 109,921,743.74/13,672.44
  6. Step 6: Final answer
    x = 8,039.66

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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.