Home / 11,920.02-17,879.48-4,129.44

Finding the Fourth Proportional to 11,920.02, 17,879.48 and 4,129.44

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Solution

The fourth proportional to 11,920.02, 17,879.48 and 4,129.44 is: 6,193.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,920.02 : 17,879.48 = 4,129.44 : x
  2. Step 2: Convert to fraction form
    11,920.02/17,879.48 = 4,129.44/x
  3. Step 3: Cross multiply
    11,920.02x = 17,879.48 × 4,129.44
  4. Step 4: Simplify right side
    11,920.02x = 73,832,239.89
  5. Step 5: Solve for x
    x = 73,832,239.89/11,920.02
  6. Step 6: Final answer
    x = 6,193.97

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1.5x scale

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.