Home / 11,999.26-16,558.86-6,621.75

Finding the Fourth Proportional to 11,999.26, 16,558.86 and 6,621.75

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Solution

The fourth proportional to 11,999.26, 16,558.86 and 6,621.75 is: 9,137.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.26 : 16,558.86 = 6,621.75 : x
  2. Step 2: Convert to fraction form
    11,999.26/16,558.86 = 6,621.75/x
  3. Step 3: Cross multiply
    11,999.26x = 16,558.86 × 6,621.75
  4. Step 4: Simplify right side
    11,999.26x = 109,648,631.21
  5. Step 5: Solve for x
    x = 109,648,631.21/11,999.26
  6. Step 6: Final answer
    x = 9,137.95

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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.