Home / 11,999.89-16,559.73-6,622.38

Finding the Fourth Proportional to 11,999.89, 16,559.73 and 6,622.38

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Solution

The fourth proportional to 11,999.89, 16,559.73 and 6,622.38 is: 9,138.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.89 : 16,559.73 = 6,622.38 : x
  2. Step 2: Convert to fraction form
    11,999.89/16,559.73 = 6,622.38/x
  3. Step 3: Cross multiply
    11,999.89x = 16,559.73 × 6,622.38
  4. Step 4: Simplify right side
    11,999.89x = 109,664,824.76
  5. Step 5: Solve for x
    x = 109,664,824.76/11,999.89
  6. Step 6: Final answer
    x = 9,138.82

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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.