Home / 7,418.67-11,120.18-5,078.06

Finding the Fourth Proportional to 7,418.67, 11,120.18 and 5,078.06

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Solution

The fourth proportional to 7,418.67, 11,120.18 and 5,078.06 is: 7,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,418.67 : 11,120.18 = 5,078.06 : x
  2. Step 2: Convert to fraction form
    7,418.67/11,120.18 = 5,078.06/x
  3. Step 3: Cross multiply
    7,418.67x = 11,120.18 × 5,078.06
  4. Step 4: Simplify right side
    7,418.67x = 56,468,860.26
  5. Step 5: Solve for x
    x = 56,468,860.26/7,418.67
  6. Step 6: Final answer
    x = 7,611.72

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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.