Home / 18,687.84-25,787.91-10,512.66

Finding the Fourth Proportional to 18,687.84, 25,787.91 and 10,512.66

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Solution

The fourth proportional to 18,687.84, 25,787.91 and 10,512.66 is: 14,506.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,687.84 : 25,787.91 = 10,512.66 : x
  2. Step 2: Convert to fraction form
    18,687.84/25,787.91 = 10,512.66/x
  3. Step 3: Cross multiply
    18,687.84x = 25,787.91 × 10,512.66
  4. Step 4: Simplify right side
    18,687.84x = 271,099,529.94
  5. Step 5: Solve for x
    x = 271,099,529.94/18,687.84
  6. Step 6: Final answer
    x = 14,506.73

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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.