Home / 18,747.08-28,092.86-8,207.36

Finding the Fourth Proportional to 18,747.08, 28,092.86 and 8,207.36

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Solution

The fourth proportional to 18,747.08, 28,092.86 and 8,207.36 is: 12,298.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,747.08 : 28,092.86 = 8,207.36 : x
  2. Step 2: Convert to fraction form
    18,747.08/28,092.86 = 8,207.36/x
  3. Step 3: Cross multiply
    18,747.08x = 28,092.86 × 8,207.36
  4. Step 4: Simplify right side
    18,747.08x = 230,568,215.45
  5. Step 5: Solve for x
    x = 230,568,215.45/18,747.08
  6. Step 6: Final answer
    x = 12,298.89

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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.