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Finding the Fourth Proportional to 18,551.51, 25,599.79 and 10,997.45

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Solution

The fourth proportional to 18,551.51, 25,599.79 and 10,997.45 is: 15,175.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.51 : 25,599.79 = 10,997.45 : x
  2. Step 2: Convert to fraction form
    18,551.51/25,599.79 = 10,997.45/x
  3. Step 3: Cross multiply
    18,551.51x = 25,599.79 × 10,997.45
  4. Step 4: Simplify right side
    18,551.51x = 281,532,410.54
  5. Step 5: Solve for x
    x = 281,532,410.54/18,551.51
  6. Step 6: Final answer
    x = 15,175.71

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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.