Home / 12,455.72-18,672.32-4,552.66

Finding the Fourth Proportional to 12,455.72, 18,672.32 and 4,552.66

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Solution

The fourth proportional to 12,455.72, 18,672.32 and 4,552.66 is: 6,824.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.72 : 18,672.32 = 4,552.66 : x
  2. Step 2: Convert to fraction form
    12,455.72/18,672.32 = 4,552.66/x
  3. Step 3: Cross multiply
    12,455.72x = 18,672.32 × 4,552.66
  4. Step 4: Simplify right side
    12,455.72x = 85,008,759.09
  5. Step 5: Solve for x
    x = 85,008,759.09/12,455.72
  6. Step 6: Final answer
    x = 6,824.88

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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.