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Finding the Fourth Proportional to 18,274.56, 25,219.51 and 11,199.62

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Solution

The fourth proportional to 18,274.56, 25,219.51 and 11,199.62 is: 15,455.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.56 : 25,219.51 = 11,199.62 : x
  2. Step 2: Convert to fraction form
    18,274.56/25,219.51 = 11,199.62/x
  3. Step 3: Cross multiply
    18,274.56x = 25,219.51 × 11,199.62
  4. Step 4: Simplify right side
    18,274.56x = 282,448,928.59
  5. Step 5: Solve for x
    x = 282,448,928.59/18,274.56
  6. Step 6: Final answer
    x = 15,455.85

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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.