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Finding the Fourth Proportional to 18,600.58, 25,665.69 and 11,148.58

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Solution

The fourth proportional to 18,600.58, 25,665.69 and 11,148.58 is: 15,383.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.58 : 25,665.69 = 11,148.58 : x
  2. Step 2: Convert to fraction form
    18,600.58/25,665.69 = 11,148.58/x
  3. Step 3: Cross multiply
    18,600.58x = 25,665.69 × 11,148.58
  4. Step 4: Simplify right side
    18,600.58x = 286,135,998.22
  5. Step 5: Solve for x
    x = 286,135,998.22/18,600.58
  6. Step 6: Final answer
    x = 15,383.18

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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.