Home / 11,868.53-17,787.21-8,733.86

Finding the Fourth Proportional to 11,868.53, 17,787.21 and 8,733.86

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Solution

The fourth proportional to 11,868.53, 17,787.21 and 8,733.86 is: 13,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.53 : 17,787.21 = 8,733.86 : x
  2. Step 2: Convert to fraction form
    11,868.53/17,787.21 = 8,733.86/x
  3. Step 3: Cross multiply
    11,868.53x = 17,787.21 × 8,733.86
  4. Step 4: Simplify right side
    11,868.53x = 155,350,912.99
  5. Step 5: Solve for x
    x = 155,350,912.99/11,868.53
  6. Step 6: Final answer
    x = 13,089.32

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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.