Home / 10,083.94-15,112.80-5,641.39

Finding the Fourth Proportional to 10,083.94, 15,112.80 and 5,641.39

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Solution

The fourth proportional to 10,083.94, 15,112.80 and 5,641.39 is: 8,454.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,083.94 : 15,112.80 = 5,641.39 : x
  2. Step 2: Convert to fraction form
    10,083.94/15,112.80 = 5,641.39/x
  3. Step 3: Cross multiply
    10,083.94x = 15,112.80 × 5,641.39
  4. Step 4: Simplify right side
    10,083.94x = 85,257,198.79
  5. Step 5: Solve for x
    x = 85,257,198.79/10,083.94
  6. Step 6: Final answer
    x = 8,454.75

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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.