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Finding the Fourth Proportional to 18,576, 27,865.28 and 6,092.72

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Solution

The fourth proportional to 18,576, 27,865.28 and 6,092.72 is: 9,139.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,576 : 27,865.28 = 6,092.72 : x
  2. Step 2: Convert to fraction form
    18,576/27,865.28 = 6,092.72/x
  3. Step 3: Cross multiply
    18,576x = 27,865.28 × 6,092.72
  4. Step 4: Simplify right side
    18,576x = 169,775,348.76
  5. Step 5: Solve for x
    x = 169,775,348.76/18,576
  6. Step 6: Final answer
    x = 9,139.50

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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.