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Finding the Fourth Proportional to 9,438.60, 13,025.70 and 5,247.12

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Solution

The fourth proportional to 9,438.60, 13,025.70 and 5,247.12 is: 7,241.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.60 : 13,025.70 = 5,247.12 : x
  2. Step 2: Convert to fraction form
    9,438.60/13,025.70 = 5,247.12/x
  3. Step 3: Cross multiply
    9,438.60x = 13,025.70 × 5,247.12
  4. Step 4: Simplify right side
    9,438.60x = 68,347,410.98
  5. Step 5: Solve for x
    x = 68,347,410.98/9,438.60
  6. Step 6: Final answer
    x = 7,241.27

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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.