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Finding the Fourth Proportional to 9,255.43, 12,772.82 and 5,276.44

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Solution

The fourth proportional to 9,255.43, 12,772.82 and 5,276.44 is: 7,281.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,255.43 : 12,772.82 = 5,276.44 : x
  2. Step 2: Convert to fraction form
    9,255.43/12,772.82 = 5,276.44/x
  3. Step 3: Cross multiply
    9,255.43x = 12,772.82 × 5,276.44
  4. Step 4: Simplify right side
    9,255.43x = 67,395,018.36
  5. Step 5: Solve for x
    x = 67,395,018.36/9,255.43
  6. Step 6: Final answer
    x = 7,281.67

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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.