Home / 8,291.40-11,441.76-4,514.47

Finding the Fourth Proportional to 8,291.40, 11,441.76 and 4,514.47

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Solution

The fourth proportional to 8,291.40, 11,441.76 and 4,514.47 is: 6,229.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.40 : 11,441.76 = 4,514.47 : x
  2. Step 2: Convert to fraction form
    8,291.40/11,441.76 = 4,514.47/x
  3. Step 3: Cross multiply
    8,291.40x = 11,441.76 × 4,514.47
  4. Step 4: Simplify right side
    8,291.40x = 51,653,453.66
  5. Step 5: Solve for x
    x = 51,653,453.66/8,291.40
  6. Step 6: Final answer
    x = 6,229.76

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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.