Home / 13,903.44-20,863.32-5,144.46

Finding the Fourth Proportional to 13,903.44, 20,863.32 and 5,144.46

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Solution

The fourth proportional to 13,903.44, 20,863.32 and 5,144.46 is: 7,719.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.44 : 20,863.32 = 5,144.46 : x
  2. Step 2: Convert to fraction form
    13,903.44/20,863.32 = 5,144.46/x
  3. Step 3: Cross multiply
    13,903.44x = 20,863.32 × 5,144.46
  4. Step 4: Simplify right side
    13,903.44x = 107,330,515.21
  5. Step 5: Solve for x
    x = 107,330,515.21/13,903.44
  6. Step 6: Final answer
    x = 7,719.71

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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.