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Finding the Fourth Proportional to 18,804.66, 28,202.37 and 7,714.52

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Solution

The fourth proportional to 18,804.66, 28,202.37 and 7,714.52 is: 11,569.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,804.66 : 28,202.37 = 7,714.52 : x
  2. Step 2: Convert to fraction form
    18,804.66/28,202.37 = 7,714.52/x
  3. Step 3: Cross multiply
    18,804.66x = 28,202.37 × 7,714.52
  4. Step 4: Simplify right side
    18,804.66x = 217,567,747.41
  5. Step 5: Solve for x
    x = 217,567,747.41/18,804.66
  6. Step 6: Final answer
    x = 11,569.88

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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.