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Finding the Fourth Proportional to 7,443, 11,163.60 and 2,445.12

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Solution

The fourth proportional to 7,443, 11,163.60 and 2,445.12 is: 3,667.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,443 : 11,163.60 = 2,445.12 : x
  2. Step 2: Convert to fraction form
    7,443/11,163.60 = 2,445.12/x
  3. Step 3: Cross multiply
    7,443x = 11,163.60 × 2,445.12
  4. Step 4: Simplify right side
    7,443x = 27,296,341.63
  5. Step 5: Solve for x
    x = 27,296,341.63/7,443
  6. Step 6: Final answer
    x = 3,667.38

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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.