Home / 11,999.15-16,558.94-6,621.83

Finding the Fourth Proportional to 11,999.15, 16,558.94 and 6,621.83

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Solution

The fourth proportional to 11,999.15, 16,558.94 and 6,621.83 is: 9,138.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.15 : 16,558.94 = 6,621.83 : x
  2. Step 2: Convert to fraction form
    11,999.15/16,558.94 = 6,621.83/x
  3. Step 3: Cross multiply
    11,999.15x = 16,558.94 × 6,621.83
  4. Step 4: Simplify right side
    11,999.15x = 109,650,369.76
  5. Step 5: Solve for x
    x = 109,650,369.76/11,999.15
  6. Step 6: Final answer
    x = 9,138.18

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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.