Home / 11,189.25-16,775.39-9,647.42

Finding the Fourth Proportional to 11,189.25, 16,775.39 and 9,647.42

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Solution

The fourth proportional to 11,189.25, 16,775.39 and 9,647.42 is: 14,463.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.25 : 16,775.39 = 9,647.42 : x
  2. Step 2: Convert to fraction form
    11,189.25/16,775.39 = 9,647.42/x
  3. Step 3: Cross multiply
    11,189.25x = 16,775.39 × 9,647.42
  4. Step 4: Simplify right side
    11,189.25x = 161,839,100.88
  5. Step 5: Solve for x
    x = 161,839,100.88/11,189.25
  6. Step 6: Final answer
    x = 14,463.80

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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.