Home / 11,787.89-17,683.92-3,890.84

Finding the Fourth Proportional to 11,787.89, 17,683.92 and 3,890.84

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Solution

The fourth proportional to 11,787.89, 17,683.92 and 3,890.84 is: 5,836.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,787.89 : 17,683.92 = 3,890.84 : x
  2. Step 2: Convert to fraction form
    11,787.89/17,683.92 = 3,890.84/x
  3. Step 3: Cross multiply
    11,787.89x = 17,683.92 × 3,890.84
  4. Step 4: Simplify right side
    11,787.89x = 68,805,214.87
  5. Step 5: Solve for x
    x = 68,805,214.87/11,787.89
  6. Step 6: Final answer
    x = 5,836.94

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1.5x scale

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.