Home / 10,120.57-15,182.66-3,100.44

Finding the Fourth Proportional to 10,120.57, 15,182.66 and 3,100.44

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Solution

The fourth proportional to 10,120.57, 15,182.66 and 3,100.44 is: 4,651.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.57 : 15,182.66 = 3,100.44 : x
  2. Step 2: Convert to fraction form
    10,120.57/15,182.66 = 3,100.44/x
  3. Step 3: Cross multiply
    10,120.57x = 15,182.66 × 3,100.44
  4. Step 4: Simplify right side
    10,120.57x = 47,072,926.37
  5. Step 5: Solve for x
    x = 47,072,926.37/10,120.57
  6. Step 6: Final answer
    x = 4,651.21

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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.