Home / 11,091.54-15,299.61-6,612.30

Finding the Fourth Proportional to 11,091.54, 15,299.61 and 6,612.30

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Solution

The fourth proportional to 11,091.54, 15,299.61 and 6,612.30 is: 9,120.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,091.54 : 15,299.61 = 6,612.30 : x
  2. Step 2: Convert to fraction form
    11,091.54/15,299.61 = 6,612.30/x
  3. Step 3: Cross multiply
    11,091.54x = 15,299.61 × 6,612.30
  4. Step 4: Simplify right side
    11,091.54x = 101,165,611.20
  5. Step 5: Solve for x
    x = 101,165,611.20/11,091.54
  6. Step 6: Final answer
    x = 9,120.97

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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.