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Finding the Fourth Proportional to 8,717.22, 12,029.28 and 4,738.31

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Solution

The fourth proportional to 8,717.22, 12,029.28 and 4,738.31 is: 6,538.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.22 : 12,029.28 = 4,738.31 : x
  2. Step 2: Convert to fraction form
    8,717.22/12,029.28 = 4,738.31/x
  3. Step 3: Cross multiply
    8,717.22x = 12,029.28 × 4,738.31
  4. Step 4: Simplify right side
    8,717.22x = 56,998,397.57
  5. Step 5: Solve for x
    x = 56,998,397.57/8,717.22
  6. Step 6: Final answer
    x = 6,538.60

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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.