Home / 11,999.13-16,558.69-6,621.62

Finding the Fourth Proportional to 11,999.13, 16,558.69 and 6,621.62

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Solution

The fourth proportional to 11,999.13, 16,558.69 and 6,621.62 is: 9,137.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,999.13 : 16,558.69 = 6,621.62 : x
  2. Step 2: Convert to fraction form
    11,999.13/16,558.69 = 6,621.62/x
  3. Step 3: Cross multiply
    11,999.13x = 16,558.69 × 6,621.62
  4. Step 4: Simplify right side
    11,999.13x = 109,645,352.88
  5. Step 5: Solve for x
    x = 109,645,352.88/11,999.13
  6. Step 6: Final answer
    x = 9,137.78

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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.