Home / 11,988.54-17,984.32-4,092.55

Finding the Fourth Proportional to 11,988.54, 17,984.32 and 4,092.55

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Solution

The fourth proportional to 11,988.54, 17,984.32 and 4,092.55 is: 6,139.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988.54 : 17,984.32 = 4,092.55 : x
  2. Step 2: Convert to fraction form
    11,988.54/17,984.32 = 4,092.55/x
  3. Step 3: Cross multiply
    11,988.54x = 17,984.32 × 4,092.55
  4. Step 4: Simplify right side
    11,988.54x = 73,601,673.62
  5. Step 5: Solve for x
    x = 73,601,673.62/11,988.54
  6. Step 6: Final answer
    x = 6,139.34

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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.