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Finding the Fourth Proportional to 14,796.20, 20,416.92 and 8,423.62

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Solution

The fourth proportional to 14,796.20, 20,416.92 and 8,423.62 is: 11,623.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,796.20 : 20,416.92 = 8,423.62 : x
  2. Step 2: Convert to fraction form
    14,796.20/20,416.92 = 8,423.62/x
  3. Step 3: Cross multiply
    14,796.20x = 20,416.92 × 8,423.62
  4. Step 4: Simplify right side
    14,796.20x = 171,984,375.65
  5. Step 5: Solve for x
    x = 171,984,375.65/14,796.20
  6. Step 6: Final answer
    x = 11,623.55

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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.