Home / 11,218.36-15,481.40-6,505.44

Finding the Fourth Proportional to 11,218.36, 15,481.40 and 6,505.44

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Solution

The fourth proportional to 11,218.36, 15,481.40 and 6,505.44 is: 8,977.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.36 : 15,481.40 = 6,505.44 : x
  2. Step 2: Convert to fraction form
    11,218.36/15,481.40 = 6,505.44/x
  3. Step 3: Cross multiply
    11,218.36x = 15,481.40 × 6,505.44
  4. Step 4: Simplify right side
    11,218.36x = 100,713,318.82
  5. Step 5: Solve for x
    x = 100,713,318.82/11,218.36
  6. Step 6: Final answer
    x = 8,977.54

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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.