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Finding the Fourth Proportional to 13,325.44, 18,387.01 and 7,659.09

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Solution

The fourth proportional to 13,325.44, 18,387.01 and 7,659.09 is: 10,568.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,325.44 : 18,387.01 = 7,659.09 : x
  2. Step 2: Convert to fraction form
    13,325.44/18,387.01 = 7,659.09/x
  3. Step 3: Cross multiply
    13,325.44x = 18,387.01 × 7,659.09
  4. Step 4: Simplify right side
    13,325.44x = 140,827,764.42
  5. Step 5: Solve for x
    x = 140,827,764.42/13,325.44
  6. Step 6: Final answer
    x = 10,568.34

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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.