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Finding the Fourth Proportional to 8,649.36, 11,910.99 and 7,514.52

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Solution

The fourth proportional to 8,649.36, 11,910.99 and 7,514.52 is: 10,348.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.36 : 11,910.99 = 7,514.52 : x
  2. Step 2: Convert to fraction form
    8,649.36/11,910.99 = 7,514.52/x
  3. Step 3: Cross multiply
    8,649.36x = 11,910.99 × 7,514.52
  4. Step 4: Simplify right side
    8,649.36x = 89,505,327.91
  5. Step 5: Solve for x
    x = 89,505,327.91/8,649.36
  6. Step 6: Final answer
    x = 10,348.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.