Home / 11,128.88-16,690.44-5,201.84

Finding the Fourth Proportional to 11,128.88, 16,690.44 and 5,201.84

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Solution

The fourth proportional to 11,128.88, 16,690.44 and 5,201.84 is: 7,801.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.88 : 16,690.44 = 5,201.84 : x
  2. Step 2: Convert to fraction form
    11,128.88/16,690.44 = 5,201.84/x
  3. Step 3: Cross multiply
    11,128.88x = 16,690.44 × 5,201.84
  4. Step 4: Simplify right side
    11,128.88x = 86,820,998.41
  5. Step 5: Solve for x
    x = 86,820,998.41/11,128.88
  6. Step 6: Final answer
    x = 7,801.41

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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.