Home / 12,228.15-18,341.92-3,908.04

Finding the Fourth Proportional to 12,228.15, 18,341.92 and 3,908.04

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Solution

The fourth proportional to 12,228.15, 18,341.92 and 3,908.04 is: 5,861.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.15 : 18,341.92 = 3,908.04 : x
  2. Step 2: Convert to fraction form
    12,228.15/18,341.92 = 3,908.04/x
  3. Step 3: Cross multiply
    12,228.15x = 18,341.92 × 3,908.04
  4. Step 4: Simplify right side
    12,228.15x = 71,680,957.04
  5. Step 5: Solve for x
    x = 71,680,957.04/12,228.15
  6. Step 6: Final answer
    x = 5,861.96

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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.