Home / 7,999.90-11,039.78-4,414.89

Finding the Fourth Proportional to 7,999.90, 11,039.78 and 4,414.89

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Solution

The fourth proportional to 7,999.90, 11,039.78 and 4,414.89 is: 6,092.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,999.90 : 11,039.78 = 4,414.89 : x
  2. Step 2: Convert to fraction form
    7,999.90/11,039.78 = 4,414.89/x
  3. Step 3: Cross multiply
    7,999.90x = 11,039.78 × 4,414.89
  4. Step 4: Simplify right side
    7,999.90x = 48,739,408.81
  5. Step 5: Solve for x
    x = 48,739,408.81/7,999.90
  6. Step 6: Final answer
    x = 6,092.50

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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.