Home / 12,481.22-18,723-3,714.56

Finding the Fourth Proportional to 12,481.22, 18,723 and 3,714.56

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Solution

The fourth proportional to 12,481.22, 18,723 and 3,714.56 is: 5,572.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.22 : 18,723 = 3,714.56 : x
  2. Step 2: Convert to fraction form
    12,481.22/18,723 = 3,714.56/x
  3. Step 3: Cross multiply
    12,481.22x = 18,723 × 3,714.56
  4. Step 4: Simplify right side
    12,481.22x = 69,547,706.88
  5. Step 5: Solve for x
    x = 69,547,706.88/12,481.22
  6. Step 6: Final answer
    x = 5,572.19

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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.