Home / 12,451.08-18,678.42-3,684.84

Finding the Fourth Proportional to 12,451.08, 18,678.42 and 3,684.84

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Solution

The fourth proportional to 12,451.08, 18,678.42 and 3,684.84 is: 5,527.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451.08 : 18,678.42 = 3,684.84 : x
  2. Step 2: Convert to fraction form
    12,451.08/18,678.42 = 3,684.84/x
  3. Step 3: Cross multiply
    12,451.08x = 18,678.42 × 3,684.84
  4. Step 4: Simplify right side
    12,451.08x = 68,826,989.15
  5. Step 5: Solve for x
    x = 68,826,989.15/12,451.08
  6. Step 6: Final answer
    x = 5,527.79

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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.