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Finding the Fourth Proportional to 19,069, 28,576.24 and 8,382.56

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Solution

The fourth proportional to 19,069, 28,576.24 and 8,382.56 is: 12,561.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,069 : 28,576.24 = 8,382.56 : x
  2. Step 2: Convert to fraction form
    19,069/28,576.24 = 8,382.56/x
  3. Step 3: Cross multiply
    19,069x = 28,576.24 × 8,382.56
  4. Step 4: Simplify right side
    19,069x = 239,542,046.37
  5. Step 5: Solve for x
    x = 239,542,046.37/19,069
  6. Step 6: Final answer
    x = 12,561.86

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1.5x scale

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.