Home / 7,661.43-11,500.20-6,789.52

Finding the Fourth Proportional to 7,661.43, 11,500.20 and 6,789.52

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Solution

The fourth proportional to 7,661.43, 11,500.20 and 6,789.52 is: 10,191.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,661.43 : 11,500.20 = 6,789.52 : x
  2. Step 2: Convert to fraction form
    7,661.43/11,500.20 = 6,789.52/x
  3. Step 3: Cross multiply
    7,661.43x = 11,500.20 × 6,789.52
  4. Step 4: Simplify right side
    7,661.43x = 78,080,852.28
  5. Step 5: Solve for x
    x = 78,080,852.28/7,661.43
  6. Step 6: Final answer
    x = 10,191.42

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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.