Home / 8,101.20-12,125.84-4,200.24

Finding the Fourth Proportional to 8,101.20, 12,125.84 and 4,200.24

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Solution

The fourth proportional to 8,101.20, 12,125.84 and 4,200.24 is: 6,286.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.20 : 12,125.84 = 4,200.24 : x
  2. Step 2: Convert to fraction form
    8,101.20/12,125.84 = 4,200.24/x
  3. Step 3: Cross multiply
    8,101.20x = 12,125.84 × 4,200.24
  4. Step 4: Simplify right side
    8,101.20x = 50,931,438.20
  5. Step 5: Solve for x
    x = 50,931,438.20/8,101.20
  6. Step 6: Final answer
    x = 6,286.90

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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.