Home / 11,819.67-16,311.15-6,514.44

Finding the Fourth Proportional to 11,819.67, 16,311.15 and 6,514.44

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Solution

The fourth proportional to 11,819.67, 16,311.15 and 6,514.44 is: 8,989.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.67 : 16,311.15 = 6,514.44 : x
  2. Step 2: Convert to fraction form
    11,819.67/16,311.15 = 6,514.44/x
  3. Step 3: Cross multiply
    11,819.67x = 16,311.15 × 6,514.44
  4. Step 4: Simplify right side
    11,819.67x = 106,258,008.01
  5. Step 5: Solve for x
    x = 106,258,008.01/11,819.67
  6. Step 6: Final answer
    x = 8,989.93

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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.