Home / 11,331.09-16,996.64-3,931.54

Finding the Fourth Proportional to 11,331.09, 16,996.64 and 3,931.54

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Solution

The fourth proportional to 11,331.09, 16,996.64 and 3,931.54 is: 5,897.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.09 : 16,996.64 = 3,931.54 : x
  2. Step 2: Convert to fraction form
    11,331.09/16,996.64 = 3,931.54/x
  3. Step 3: Cross multiply
    11,331.09x = 16,996.64 × 3,931.54
  4. Step 4: Simplify right side
    11,331.09x = 66,822,907.88
  5. Step 5: Solve for x
    x = 66,822,907.88/11,331.09
  6. Step 6: Final answer
    x = 5,897.31

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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.