Home / 7,472.20-11,208.30-6,791.80

Finding the Fourth Proportional to 7,472.20, 11,208.30 and 6,791.80

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Solution

The fourth proportional to 7,472.20, 11,208.30 and 6,791.80 is: 10,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472.20 : 11,208.30 = 6,791.80 : x
  2. Step 2: Convert to fraction form
    7,472.20/11,208.30 = 6,791.80/x
  3. Step 3: Cross multiply
    7,472.20x = 11,208.30 × 6,791.80
  4. Step 4: Simplify right side
    7,472.20x = 76,124,531.94
  5. Step 5: Solve for x
    x = 76,124,531.94/7,472.20
  6. Step 6: Final answer
    x = 10,187.70

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1.5x scale

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.