Home / 10,627.89-15,942.41-3,231.78

Finding the Fourth Proportional to 10,627.89, 15,942.41 and 3,231.78

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Solution

The fourth proportional to 10,627.89, 15,942.41 and 3,231.78 is: 4,847.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,627.89 : 15,942.41 = 3,231.78 : x
  2. Step 2: Convert to fraction form
    10,627.89/15,942.41 = 3,231.78/x
  3. Step 3: Cross multiply
    10,627.89x = 15,942.41 × 3,231.78
  4. Step 4: Simplify right side
    10,627.89x = 51,522,345.63
  5. Step 5: Solve for x
    x = 51,522,345.63/10,627.89
  6. Step 6: Final answer
    x = 4,847.84

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1.5x scale

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.