Home / 13,811.28-20,697.44-10,350.96

Finding the Fourth Proportional to 13,811.28, 20,697.44 and 10,350.96

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Solution

The fourth proportional to 13,811.28, 20,697.44 and 10,350.96 is: 15,511.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,811.28 : 20,697.44 = 10,350.96 : x
  2. Step 2: Convert to fraction form
    13,811.28/20,697.44 = 10,350.96/x
  3. Step 3: Cross multiply
    13,811.28x = 20,697.44 × 10,350.96
  4. Step 4: Simplify right side
    13,811.28x = 214,238,373.54
  5. Step 5: Solve for x
    x = 214,238,373.54/13,811.28
  6. Step 6: Final answer
    x = 15,511.84

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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.