Home / 8,787.07-13,179.19-2,942.31

Finding the Fourth Proportional to 8,787.07, 13,179.19 and 2,942.31

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Solution

The fourth proportional to 8,787.07, 13,179.19 and 2,942.31 is: 4,412.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.07 : 13,179.19 = 2,942.31 : x
  2. Step 2: Convert to fraction form
    8,787.07/13,179.19 = 2,942.31/x
  3. Step 3: Cross multiply
    8,787.07x = 13,179.19 × 2,942.31
  4. Step 4: Simplify right side
    8,787.07x = 38,777,262.53
  5. Step 5: Solve for x
    x = 38,777,262.53/8,787.07
  6. Step 6: Final answer
    x = 4,412.99

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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.