Home / 8,525.78-12,787.75-2,286.42

Finding the Fourth Proportional to 8,525.78, 12,787.75 and 2,286.42

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Solution

The fourth proportional to 8,525.78, 12,787.75 and 2,286.42 is: 3,429.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,525.78 : 12,787.75 = 2,286.42 : x
  2. Step 2: Convert to fraction form
    8,525.78/12,787.75 = 2,286.42/x
  3. Step 3: Cross multiply
    8,525.78x = 12,787.75 × 2,286.42
  4. Step 4: Simplify right side
    8,525.78x = 29,238,167.36
  5. Step 5: Solve for x
    x = 29,238,167.36/8,525.78
  6. Step 6: Final answer
    x = 3,429.38

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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.