Home / 11,820.12-17,731.44-4,029

Finding the Fourth Proportional to 11,820.12, 17,731.44 and 4,029

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Solution

The fourth proportional to 11,820.12, 17,731.44 and 4,029 is: 6,043.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.12 : 17,731.44 = 4,029 : x
  2. Step 2: Convert to fraction form
    11,820.12/17,731.44 = 4,029/x
  3. Step 3: Cross multiply
    11,820.12x = 17,731.44 × 4,029
  4. Step 4: Simplify right side
    11,820.12x = 71,439,971.76
  5. Step 5: Solve for x
    x = 71,439,971.76/11,820.12
  6. Step 6: Final answer
    x = 6,043.93

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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.