Home / 12,207.66-18,305.43-3,886.59

Finding the Fourth Proportional to 12,207.66, 18,305.43 and 3,886.59

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Solution

The fourth proportional to 12,207.66, 18,305.43 and 3,886.59 is: 5,827.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.66 : 18,305.43 = 3,886.59 : x
  2. Step 2: Convert to fraction form
    12,207.66/18,305.43 = 3,886.59/x
  3. Step 3: Cross multiply
    12,207.66x = 18,305.43 × 3,886.59
  4. Step 4: Simplify right side
    12,207.66x = 71,145,769.83
  5. Step 5: Solve for x
    x = 71,145,769.83/12,207.66
  6. Step 6: Final answer
    x = 5,827.96

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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.