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Finding the Fourth Proportional to 13,372.62, 20,029.74 and 9,465.18

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Solution

The fourth proportional to 13,372.62, 20,029.74 and 9,465.18 is: 14,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,372.62 : 20,029.74 = 9,465.18 : x
  2. Step 2: Convert to fraction form
    13,372.62/20,029.74 = 9,465.18/x
  3. Step 3: Cross multiply
    13,372.62x = 20,029.74 × 9,465.18
  4. Step 4: Simplify right side
    13,372.62x = 189,585,094.45
  5. Step 5: Solve for x
    x = 189,585,094.45/13,372.62
  6. Step 6: Final answer
    x = 14,177.11

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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.