Home / 11,518.20-15,893.96-6,481.98

Finding the Fourth Proportional to 11,518.20, 15,893.96 and 6,481.98

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Solution

The fourth proportional to 11,518.20, 15,893.96 and 6,481.98 is: 8,944.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.20 : 15,893.96 = 6,481.98 : x
  2. Step 2: Convert to fraction form
    11,518.20/15,893.96 = 6,481.98/x
  3. Step 3: Cross multiply
    11,518.20x = 15,893.96 × 6,481.98
  4. Step 4: Simplify right side
    11,518.20x = 103,024,298.43
  5. Step 5: Solve for x
    x = 103,024,298.43/11,518.20
  6. Step 6: Final answer
    x = 8,944.48

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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.