Home / 8,672.73-11,963.61-5,135.25

Finding the Fourth Proportional to 8,672.73, 11,963.61 and 5,135.25

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Solution

The fourth proportional to 8,672.73, 11,963.61 and 5,135.25 is: 7,083.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.73 : 11,963.61 = 5,135.25 : x
  2. Step 2: Convert to fraction form
    8,672.73/11,963.61 = 5,135.25/x
  3. Step 3: Cross multiply
    8,672.73x = 11,963.61 × 5,135.25
  4. Step 4: Simplify right side
    8,672.73x = 61,436,128.25
  5. Step 5: Solve for x
    x = 61,436,128.25/8,672.73
  6. Step 6: Final answer
    x = 7,083.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.