Home / 8,540.40-11,787.48-5,006.64

Finding the Fourth Proportional to 8,540.40, 11,787.48 and 5,006.64

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Solution

The fourth proportional to 8,540.40, 11,787.48 and 5,006.64 is: 6,910.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.40 : 11,787.48 = 5,006.64 : x
  2. Step 2: Convert to fraction form
    8,540.40/11,787.48 = 5,006.64/x
  3. Step 3: Cross multiply
    8,540.40x = 11,787.48 × 5,006.64
  4. Step 4: Simplify right side
    8,540.40x = 59,015,668.87
  5. Step 5: Solve for x
    x = 59,015,668.87/8,540.40
  6. Step 6: Final answer
    x = 6,910.18

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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.