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Finding the Fourth Proportional to 18,297.70, 27,443.72 and 5,816.09

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Solution

The fourth proportional to 18,297.70, 27,443.72 and 5,816.09 is: 8,723.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.70 : 27,443.72 = 5,816.09 : x
  2. Step 2: Convert to fraction form
    18,297.70/27,443.72 = 5,816.09/x
  3. Step 3: Cross multiply
    18,297.70x = 27,443.72 × 5,816.09
  4. Step 4: Simplify right side
    18,297.70x = 159,615,228.60
  5. Step 5: Solve for x
    x = 159,615,228.60/18,297.70
  6. Step 6: Final answer
    x = 8,723.24

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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.