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Finding the Fourth Proportional to 18,349.53, 25,322.28 and 10,391.88

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Solution

The fourth proportional to 18,349.53, 25,322.28 and 10,391.88 is: 14,340.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.53 : 25,322.28 = 10,391.88 : x
  2. Step 2: Convert to fraction form
    18,349.53/25,322.28 = 10,391.88/x
  3. Step 3: Cross multiply
    18,349.53x = 25,322.28 × 10,391.88
  4. Step 4: Simplify right side
    18,349.53x = 263,146,095.09
  5. Step 5: Solve for x
    x = 263,146,095.09/18,349.53
  6. Step 6: Final answer
    x = 14,340.75

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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.