Home / 10,370.25-15,550.47-3,439.89

Finding the Fourth Proportional to 10,370.25, 15,550.47 and 3,439.89

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Solution

The fourth proportional to 10,370.25, 15,550.47 and 3,439.89 is: 5,158.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,370.25 : 15,550.47 = 3,439.89 : x
  2. Step 2: Convert to fraction form
    10,370.25/15,550.47 = 3,439.89/x
  3. Step 3: Cross multiply
    10,370.25x = 15,550.47 × 3,439.89
  4. Step 4: Simplify right side
    10,370.25x = 53,491,906.25
  5. Step 5: Solve for x
    x = 53,491,906.25/10,370.25
  6. Step 6: Final answer
    x = 5,158.21

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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.