Home / 11,819.83-16,311.46-6,514.66

Finding the Fourth Proportional to 11,819.83, 16,311.46 and 6,514.66

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Solution

The fourth proportional to 11,819.83, 16,311.46 and 6,514.66 is: 8,990.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.83 : 16,311.46 = 6,514.66 : x
  2. Step 2: Convert to fraction form
    11,819.83/16,311.46 = 6,514.66/x
  3. Step 3: Cross multiply
    11,819.83x = 16,311.46 × 6,514.66
  4. Step 4: Simplify right side
    11,819.83x = 106,263,534.45
  5. Step 5: Solve for x
    x = 106,263,534.45/11,819.83
  6. Step 6: Final answer
    x = 8,990.28

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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.