Home / 11,990.54-17,987.33-4,094.56

Finding the Fourth Proportional to 11,990.54, 17,987.33 and 4,094.56

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Solution

The fourth proportional to 11,990.54, 17,987.33 and 4,094.56 is: 6,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.54 : 17,987.33 = 4,094.56 : x
  2. Step 2: Convert to fraction form
    11,990.54/17,987.33 = 4,094.56/x
  3. Step 3: Cross multiply
    11,990.54x = 17,987.33 × 4,094.56
  4. Step 4: Simplify right side
    11,990.54x = 73,650,091.52
  5. Step 5: Solve for x
    x = 73,650,091.52/11,990.54
  6. Step 6: Final answer
    x = 6,142.35

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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.