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Finding the Fourth Proportional to 9,591.12, 13,238.64 and 5,613.12

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Solution

The fourth proportional to 9,591.12, 13,238.64 and 5,613.12 is: 7,747.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,591.12 : 13,238.64 = 5,613.12 : x
  2. Step 2: Convert to fraction form
    9,591.12/13,238.64 = 5,613.12/x
  3. Step 3: Cross multiply
    9,591.12x = 13,238.64 × 5,613.12
  4. Step 4: Simplify right side
    9,591.12x = 74,310,074.96
  5. Step 5: Solve for x
    x = 74,310,074.96/9,591.12
  6. Step 6: Final answer
    x = 7,747.80

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