Home / 8,540.80-11,787.21-5,006.98

Finding the Fourth Proportional to 8,540.80, 11,787.21 and 5,006.98

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Solution

The fourth proportional to 8,540.80, 11,787.21 and 5,006.98 is: 6,910.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.80 : 11,787.21 = 5,006.98 : x
  2. Step 2: Convert to fraction form
    8,540.80/11,787.21 = 5,006.98/x
  3. Step 3: Cross multiply
    8,540.80x = 11,787.21 × 5,006.98
  4. Step 4: Simplify right side
    8,540.80x = 59,018,324.73
  5. Step 5: Solve for x
    x = 59,018,324.73/8,540.80
  6. Step 6: Final answer
    x = 6,910.16

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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.