Home / 11,431.78-17,135.52-5,504.98

Finding the Fourth Proportional to 11,431.78, 17,135.52 and 5,504.98

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Solution

The fourth proportional to 11,431.78, 17,135.52 and 5,504.98 is: 8,251.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,431.78 : 17,135.52 = 5,504.98 : x
  2. Step 2: Convert to fraction form
    11,431.78/17,135.52 = 5,504.98/x
  3. Step 3: Cross multiply
    11,431.78x = 17,135.52 × 5,504.98
  4. Step 4: Simplify right side
    11,431.78x = 94,330,637.69
  5. Step 5: Solve for x
    x = 94,330,637.69/11,431.78
  6. Step 6: Final answer
    x = 8,251.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.