Home / 8,135.37-12,207.69-3,752.85

Finding the Fourth Proportional to 8,135.37, 12,207.69 and 3,752.85

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Solution

The fourth proportional to 8,135.37, 12,207.69 and 3,752.85 is: 5,631.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.37 : 12,207.69 = 3,752.85 : x
  2. Step 2: Convert to fraction form
    8,135.37/12,207.69 = 3,752.85/x
  3. Step 3: Cross multiply
    8,135.37x = 12,207.69 × 3,752.85
  4. Step 4: Simplify right side
    8,135.37x = 45,813,629.42
  5. Step 5: Solve for x
    x = 45,813,629.42/8,135.37
  6. Step 6: Final answer
    x = 5,631.41

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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.