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Finding the Fourth Proportional to 8,762.28, 12,092.26 and 5,228.20

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Solution

The fourth proportional to 8,762.28, 12,092.26 and 5,228.20 is: 7,215.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,762.28 : 12,092.26 = 5,228.20 : x
  2. Step 2: Convert to fraction form
    8,762.28/12,092.26 = 5,228.20/x
  3. Step 3: Cross multiply
    8,762.28x = 12,092.26 × 5,228.20
  4. Step 4: Simplify right side
    8,762.28x = 63,220,753.73
  5. Step 5: Solve for x
    x = 63,220,753.73/8,762.28
  6. Step 6: Final answer
    x = 7,215.10

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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.