Home / 11,819.30-16,311.38-6,514.11

Finding the Fourth Proportional to 11,819.30, 16,311.38 and 6,514.11

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Solution

The fourth proportional to 11,819.30, 16,311.38 and 6,514.11 is: 8,989.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.30 : 16,311.38 = 6,514.11 : x
  2. Step 2: Convert to fraction form
    11,819.30/16,311.38 = 6,514.11/x
  3. Step 3: Cross multiply
    11,819.30x = 16,311.38 × 6,514.11
  4. Step 4: Simplify right side
    11,819.30x = 106,254,091.00
  5. Step 5: Solve for x
    x = 106,254,091.00/11,819.30
  6. Step 6: Final answer
    x = 8,989.88

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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.