Home / 11,787.53-17,676.36-6,860.57

Finding the Fourth Proportional to 11,787.53, 17,676.36 and 6,860.57

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Solution

The fourth proportional to 11,787.53, 17,676.36 and 6,860.57 is: 10,287.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.53 : 17,676.36 = 6,860.57 : x
  2. Step 2: Convert to fraction form
    11,787.53/17,676.36 = 6,860.57/x
  3. Step 3: Cross multiply
    11,787.53x = 17,676.36 × 6,860.57
  4. Step 4: Simplify right side
    11,787.53x = 121,269,816.74
  5. Step 5: Solve for x
    x = 121,269,816.74/11,787.53
  6. Step 6: Final answer
    x = 10,287.98

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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.