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Finding the Fourth Proportional to 7,643.56, 11,464.11 and 2,095.62

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Solution

The fourth proportional to 7,643.56, 11,464.11 and 2,095.62 is: 3,143.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,643.56 : 11,464.11 = 2,095.62 : x
  2. Step 2: Convert to fraction form
    7,643.56/11,464.11 = 2,095.62/x
  3. Step 3: Cross multiply
    7,643.56x = 11,464.11 × 2,095.62
  4. Step 4: Simplify right side
    7,643.56x = 24,024,375.21
  5. Step 5: Solve for x
    x = 24,024,375.21/7,643.56
  6. Step 6: Final answer
    x = 3,143.09

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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.