Home / 8,120.62-12,148.89-6,257.62

Finding the Fourth Proportional to 8,120.62, 12,148.89 and 6,257.62

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Solution

The fourth proportional to 8,120.62, 12,148.89 and 6,257.62 is: 9,361.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.62 : 12,148.89 = 6,257.62 : x
  2. Step 2: Convert to fraction form
    8,120.62/12,148.89 = 6,257.62/x
  3. Step 3: Cross multiply
    8,120.62x = 12,148.89 × 6,257.62
  4. Step 4: Simplify right side
    8,120.62x = 76,023,137.04
  5. Step 5: Solve for x
    x = 76,023,137.04/8,120.62
  6. Step 6: Final answer
    x = 9,361.74

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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.