Home / 13,787.62-20,675.22-3,924.52

Finding the Fourth Proportional to 13,787.62, 20,675.22 and 3,924.52

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Solution

The fourth proportional to 13,787.62, 20,675.22 and 3,924.52 is: 5,885.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.62 : 20,675.22 = 3,924.52 : x
  2. Step 2: Convert to fraction form
    13,787.62/20,675.22 = 3,924.52/x
  3. Step 3: Cross multiply
    13,787.62x = 20,675.22 × 3,924.52
  4. Step 4: Simplify right side
    13,787.62x = 81,140,314.39
  5. Step 5: Solve for x
    x = 81,140,314.39/13,787.62
  6. Step 6: Final answer
    x = 5,885.01

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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.