Home / 15,872.72-23,831-8,086.96

Finding the Fourth Proportional to 15,872.72, 23,831 and 8,086.96

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Solution

The fourth proportional to 15,872.72, 23,831 and 8,086.96 is: 12,141.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,872.72 : 23,831 = 8,086.96 : x
  2. Step 2: Convert to fraction form
    15,872.72/23,831 = 8,086.96/x
  3. Step 3: Cross multiply
    15,872.72x = 23,831 × 8,086.96
  4. Step 4: Simplify right side
    15,872.72x = 192,720,343.76
  5. Step 5: Solve for x
    x = 192,720,343.76/15,872.72
  6. Step 6: Final answer
    x = 12,141.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.