Home / 10,046.78-15,069.97-3,121.26

Finding the Fourth Proportional to 10,046.78, 15,069.97 and 3,121.26

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Solution

The fourth proportional to 10,046.78, 15,069.97 and 3,121.26 is: 4,681.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,046.78 : 15,069.97 = 3,121.26 : x
  2. Step 2: Convert to fraction form
    10,046.78/15,069.97 = 3,121.26/x
  3. Step 3: Cross multiply
    10,046.78x = 15,069.97 × 3,121.26
  4. Step 4: Simplify right side
    10,046.78x = 47,037,294.56
  5. Step 5: Solve for x
    x = 47,037,294.56/10,046.78
  6. Step 6: Final answer
    x = 4,681.83

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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.