Home / 10,787.42-16,183.74-5,520.26

Finding the Fourth Proportional to 10,787.42, 16,183.74 and 5,520.26

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Solution

The fourth proportional to 10,787.42, 16,183.74 and 5,520.26 is: 8,281.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.42 : 16,183.74 = 5,520.26 : x
  2. Step 2: Convert to fraction form
    10,787.42/16,183.74 = 5,520.26/x
  3. Step 3: Cross multiply
    10,787.42x = 16,183.74 × 5,520.26
  4. Step 4: Simplify right side
    10,787.42x = 89,338,452.57
  5. Step 5: Solve for x
    x = 89,338,452.57/10,787.42
  6. Step 6: Final answer
    x = 8,281.73

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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.