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Finding the Fourth Proportional to 14,872.02, 20,523.41 and 8,157.69

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Solution

The fourth proportional to 14,872.02, 20,523.41 and 8,157.69 is: 11,257.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,872.02 : 20,523.41 = 8,157.69 : x
  2. Step 2: Convert to fraction form
    14,872.02/20,523.41 = 8,157.69/x
  3. Step 3: Cross multiply
    14,872.02x = 20,523.41 × 8,157.69
  4. Step 4: Simplify right side
    14,872.02x = 167,423,575.73
  5. Step 5: Solve for x
    x = 167,423,575.73/14,872.02
  6. Step 6: Final answer
    x = 11,257.62

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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.