Home / 12,630.33-18,942.94-4,305.83

Finding the Fourth Proportional to 12,630.33, 18,942.94 and 4,305.83

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Solution

The fourth proportional to 12,630.33, 18,942.94 and 4,305.83 is: 6,457.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,630.33 : 18,942.94 = 4,305.83 : x
  2. Step 2: Convert to fraction form
    12,630.33/18,942.94 = 4,305.83/x
  3. Step 3: Cross multiply
    12,630.33x = 18,942.94 × 4,305.83
  4. Step 4: Simplify right side
    12,630.33x = 81,565,115.93
  5. Step 5: Solve for x
    x = 81,565,115.93/12,630.33
  6. Step 6: Final answer
    x = 6,457.88

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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.