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Finding the Fourth Proportional to 14,872.32, 20,523.96 and 8,157.96

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Solution

The fourth proportional to 14,872.32, 20,523.96 and 8,157.96 is: 11,258.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,872.32 : 20,523.96 = 8,157.96 : x
  2. Step 2: Convert to fraction form
    14,872.32/20,523.96 = 8,157.96/x
  3. Step 3: Cross multiply
    14,872.32x = 20,523.96 × 8,157.96
  4. Step 4: Simplify right side
    14,872.32x = 167,433,644.72
  5. Step 5: Solve for x
    x = 167,433,644.72/14,872.32
  6. Step 6: Final answer
    x = 11,258.07

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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.