Home / 7,218.11-10,811.36-4,289.96

Finding the Fourth Proportional to 7,218.11, 10,811.36 and 4,289.96

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Solution

The fourth proportional to 7,218.11, 10,811.36 and 4,289.96 is: 6,425.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218.11 : 10,811.36 = 4,289.96 : x
  2. Step 2: Convert to fraction form
    7,218.11/10,811.36 = 4,289.96/x
  3. Step 3: Cross multiply
    7,218.11x = 10,811.36 × 4,289.96
  4. Step 4: Simplify right side
    7,218.11x = 46,380,226.44
  5. Step 5: Solve for x
    x = 46,380,226.44/7,218.11
  6. Step 6: Final answer
    x = 6,425.54

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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.