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Finding the Fourth Proportional to 18,858.53, 28,299.71 and 10,544

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Solution

The fourth proportional to 18,858.53, 28,299.71 and 10,544 is: 15,822.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858.53 : 28,299.71 = 10,544 : x
  2. Step 2: Convert to fraction form
    18,858.53/28,299.71 = 10,544/x
  3. Step 3: Cross multiply
    18,858.53x = 28,299.71 × 10,544
  4. Step 4: Simplify right side
    18,858.53x = 298,392,142.24
  5. Step 5: Solve for x
    x = 298,392,142.24/18,858.53
  6. Step 6: Final answer
    x = 15,822.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.