Home / 8,089.20-12,137.58-3,157.56

Finding the Fourth Proportional to 8,089.20, 12,137.58 and 3,157.56

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Solution

The fourth proportional to 8,089.20, 12,137.58 and 3,157.56 is: 4,737.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,089.20 : 12,137.58 = 3,157.56 : x
  2. Step 2: Convert to fraction form
    8,089.20/12,137.58 = 3,157.56/x
  3. Step 3: Cross multiply
    8,089.20x = 12,137.58 × 3,157.56
  4. Step 4: Simplify right side
    8,089.20x = 38,325,137.10
  5. Step 5: Solve for x
    x = 38,325,137.10/8,089.20
  6. Step 6: Final answer
    x = 4,737.82

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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.