Home / 8,146.56-12,226.80-3,219.72

Finding the Fourth Proportional to 8,146.56, 12,226.80 and 3,219.72

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Solution

The fourth proportional to 8,146.56, 12,226.80 and 3,219.72 is: 4,832.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.56 : 12,226.80 = 3,219.72 : x
  2. Step 2: Convert to fraction form
    8,146.56/12,226.80 = 3,219.72/x
  3. Step 3: Cross multiply
    8,146.56x = 12,226.80 × 3,219.72
  4. Step 4: Simplify right side
    8,146.56x = 39,366,872.50
  5. Step 5: Solve for x
    x = 39,366,872.50/8,146.56
  6. Step 6: Final answer
    x = 4,832.33

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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.