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Finding the Fourth Proportional to 9,435.60, 14,153.60 and 3,431.48

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Solution

The fourth proportional to 9,435.60, 14,153.60 and 3,431.48 is: 5,147.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,435.60 : 14,153.60 = 3,431.48 : x
  2. Step 2: Convert to fraction form
    9,435.60/14,153.60 = 3,431.48/x
  3. Step 3: Cross multiply
    9,435.60x = 14,153.60 × 3,431.48
  4. Step 4: Simplify right side
    9,435.60x = 48,567,733.14
  5. Step 5: Solve for x
    x = 48,567,733.14/9,435.60
  6. Step 6: Final answer
    x = 5,147.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.