Home / 7,676.12-11,514.40-2,129.52

Finding the Fourth Proportional to 7,676.12, 11,514.40 and 2,129.52

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Solution

The fourth proportional to 7,676.12, 11,514.40 and 2,129.52 is: 3,194.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,676.12 : 11,514.40 = 2,129.52 : x
  2. Step 2: Convert to fraction form
    7,676.12/11,514.40 = 2,129.52/x
  3. Step 3: Cross multiply
    7,676.12x = 11,514.40 × 2,129.52
  4. Step 4: Simplify right side
    7,676.12x = 24,520,145.09
  5. Step 5: Solve for x
    x = 24,520,145.09/7,676.12
  6. Step 6: Final answer
    x = 3,194.34

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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.