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Finding the Fourth Proportional to 18,135.36, 25,027.25 and 10,178.19

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Solution

The fourth proportional to 18,135.36, 25,027.25 and 10,178.19 is: 14,046.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.36 : 25,027.25 = 10,178.19 : x
  2. Step 2: Convert to fraction form
    18,135.36/25,027.25 = 10,178.19/x
  3. Step 3: Cross multiply
    18,135.36x = 25,027.25 × 10,178.19
  4. Step 4: Simplify right side
    18,135.36x = 254,732,054.79
  5. Step 5: Solve for x
    x = 254,732,054.79/18,135.36
  6. Step 6: Final answer
    x = 14,046.15

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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.