Home / 8,380.46-12,572.23-2,758.44

Finding the Fourth Proportional to 8,380.46, 12,572.23 and 2,758.44

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Solution

The fourth proportional to 8,380.46, 12,572.23 and 2,758.44 is: 4,138.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.46 : 12,572.23 = 2,758.44 : x
  2. Step 2: Convert to fraction form
    8,380.46/12,572.23 = 2,758.44/x
  3. Step 3: Cross multiply
    8,380.46x = 12,572.23 × 2,758.44
  4. Step 4: Simplify right side
    8,380.46x = 34,679,728.33
  5. Step 5: Solve for x
    x = 34,679,728.33/8,380.46
  6. Step 6: Final answer
    x = 4,138.17

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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.