Home / 7,999.85-11,039.61-4,415.09

Finding the Fourth Proportional to 7,999.85, 11,039.61 and 4,415.09

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Solution

The fourth proportional to 7,999.85, 11,039.61 and 4,415.09 is: 6,092.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.85 : 11,039.61 = 4,415.09 : x
  2. Step 2: Convert to fraction form
    7,999.85/11,039.61 = 4,415.09/x
  3. Step 3: Cross multiply
    7,999.85x = 11,039.61 × 4,415.09
  4. Step 4: Simplify right side
    7,999.85x = 48,740,884.31
  5. Step 5: Solve for x
    x = 48,740,884.31/7,999.85
  6. Step 6: Final answer
    x = 6,092.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.