Home / 7,427.03-11,147.18-3,919.32

Finding the Fourth Proportional to 7,427.03, 11,147.18 and 3,919.32

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Solution

The fourth proportional to 7,427.03, 11,147.18 and 3,919.32 is: 5,882.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.03 : 11,147.18 = 3,919.32 : x
  2. Step 2: Convert to fraction form
    7,427.03/11,147.18 = 3,919.32/x
  3. Step 3: Cross multiply
    7,427.03x = 11,147.18 × 3,919.32
  4. Step 4: Simplify right side
    7,427.03x = 43,689,345.92
  5. Step 5: Solve for x
    x = 43,689,345.92/7,427.03
  6. Step 6: Final answer
    x = 5,882.48

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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.