Home / 12,186.15-18,276.92-5,939.89

Finding the Fourth Proportional to 12,186.15, 18,276.92 and 5,939.89

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Solution

The fourth proportional to 12,186.15, 18,276.92 and 5,939.89 is: 8,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186.15 : 18,276.92 = 5,939.89 : x
  2. Step 2: Convert to fraction form
    12,186.15/18,276.92 = 5,939.89/x
  3. Step 3: Cross multiply
    12,186.15x = 18,276.92 × 5,939.89
  4. Step 4: Simplify right side
    12,186.15x = 108,562,909.19
  5. Step 5: Solve for x
    x = 108,562,909.19/12,186.15
  6. Step 6: Final answer
    x = 8,908.71

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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.