Home / 7,216.11-9,958.43-4,072.50

Finding the Fourth Proportional to 7,216.11, 9,958.43 and 4,072.50

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Solution

The fourth proportional to 7,216.11, 9,958.43 and 4,072.50 is: 5,620.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.11 : 9,958.43 = 4,072.50 : x
  2. Step 2: Convert to fraction form
    7,216.11/9,958.43 = 4,072.50/x
  3. Step 3: Cross multiply
    7,216.11x = 9,958.43 × 4,072.50
  4. Step 4: Simplify right side
    7,216.11x = 40,555,716.36
  5. Step 5: Solve for x
    x = 40,555,716.36/7,216.11
  6. Step 6: Final answer
    x = 5,620.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.