Home / 10,447.73-15,672.32-4,207.76

Finding the Fourth Proportional to 10,447.73, 15,672.32 and 4,207.76

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Solution

The fourth proportional to 10,447.73, 15,672.32 and 4,207.76 is: 6,311.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.73 : 15,672.32 = 4,207.76 : x
  2. Step 2: Convert to fraction form
    10,447.73/15,672.32 = 4,207.76/x
  3. Step 3: Cross multiply
    10,447.73x = 15,672.32 × 4,207.76
  4. Step 4: Simplify right side
    10,447.73x = 65,945,410.90
  5. Step 5: Solve for x
    x = 65,945,410.90/10,447.73
  6. Step 6: Final answer
    x = 6,311.94

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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.