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Finding the Fourth Proportional to 18,651.01, 27,977.29 and 5,503.39

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Solution

The fourth proportional to 18,651.01, 27,977.29 and 5,503.39 is: 8,255.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,651.01 : 27,977.29 = 5,503.39 : x
  2. Step 2: Convert to fraction form
    18,651.01/27,977.29 = 5,503.39/x
  3. Step 3: Cross multiply
    18,651.01x = 27,977.29 × 5,503.39
  4. Step 4: Simplify right side
    18,651.01x = 153,969,798.13
  5. Step 5: Solve for x
    x = 153,969,798.13/18,651.01
  6. Step 6: Final answer
    x = 8,255.31

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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.