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Finding the Fourth Proportional to 13,464.40, 20,200.20 and 9,576.40

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Solution

The fourth proportional to 13,464.40, 20,200.20 and 9,576.40 is: 14,367.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,464.40 : 20,200.20 = 9,576.40 : x
  2. Step 2: Convert to fraction form
    13,464.40/20,200.20 = 9,576.40/x
  3. Step 3: Cross multiply
    13,464.40x = 20,200.20 × 9,576.40
  4. Step 4: Simplify right side
    13,464.40x = 193,445,195.28
  5. Step 5: Solve for x
    x = 193,445,195.28/13,464.40
  6. Step 6: Final answer
    x = 14,367.16

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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.