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Finding the Fourth Proportional to 8,284.86, 11,432.34 and 4,747.86

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Solution

The fourth proportional to 8,284.86, 11,432.34 and 4,747.86 is: 6,551.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,284.86 : 11,432.34 = 4,747.86 : x
  2. Step 2: Convert to fraction form
    8,284.86/11,432.34 = 4,747.86/x
  3. Step 3: Cross multiply
    8,284.86x = 11,432.34 × 4,747.86
  4. Step 4: Simplify right side
    8,284.86x = 54,279,149.79
  5. Step 5: Solve for x
    x = 54,279,149.79/8,284.86
  6. Step 6: Final answer
    x = 6,551.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.