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Finding the Fourth Proportional to 8,879.72, 13,327.76 and 4,500.28

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Solution

The fourth proportional to 8,879.72, 13,327.76 and 4,500.28 is: 6,754.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.72 : 13,327.76 = 4,500.28 : x
  2. Step 2: Convert to fraction form
    8,879.72/13,327.76 = 4,500.28/x
  3. Step 3: Cross multiply
    8,879.72x = 13,327.76 × 4,500.28
  4. Step 4: Simplify right side
    8,879.72x = 59,978,651.77
  5. Step 5: Solve for x
    x = 59,978,651.77/8,879.72
  6. Step 6: Final answer
    x = 6,754.57

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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.