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Finding the Fourth Proportional to 8,049.70, 12,134.90 and 7,514.49

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Solution

The fourth proportional to 8,049.70, 12,134.90 and 7,514.49 is: 11,328.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,049.70 : 12,134.90 = 7,514.49 : x
  2. Step 2: Convert to fraction form
    8,049.70/12,134.90 = 7,514.49/x
  3. Step 3: Cross multiply
    8,049.70x = 12,134.90 × 7,514.49
  4. Step 4: Simplify right side
    8,049.70x = 91,187,584.70
  5. Step 5: Solve for x
    x = 91,187,584.70/8,049.70
  6. Step 6: Final answer
    x = 11,328.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.