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Finding the Fourth Proportional to 8,454.20, 11,670.88 and 5,626.28

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Solution

The fourth proportional to 8,454.20, 11,670.88 and 5,626.28 is: 7,766.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,454.20 : 11,670.88 = 5,626.28 : x
  2. Step 2: Convert to fraction form
    8,454.20/11,670.88 = 5,626.28/x
  3. Step 3: Cross multiply
    8,454.20x = 11,670.88 × 5,626.28
  4. Step 4: Simplify right side
    8,454.20x = 65,663,638.73
  5. Step 5: Solve for x
    x = 65,663,638.73/8,454.20
  6. Step 6: Final answer
    x = 7,766.98

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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.