Home / 10,630.11-15,942.73-3,131.73

Finding the Fourth Proportional to 10,630.11, 15,942.73 and 3,131.73

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Solution

The fourth proportional to 10,630.11, 15,942.73 and 3,131.73 is: 4,696.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,630.11 : 15,942.73 = 3,131.73 : x
  2. Step 2: Convert to fraction form
    10,630.11/15,942.73 = 3,131.73/x
  3. Step 3: Cross multiply
    10,630.11x = 15,942.73 × 3,131.73
  4. Step 4: Simplify right side
    10,630.11x = 49,928,325.82
  5. Step 5: Solve for x
    x = 49,928,325.82/10,630.11
  6. Step 6: Final answer
    x = 4,696.88

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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.