Home / 11,190.20-16,790.70-7,896.20

Finding the Fourth Proportional to 11,190.20, 16,790.70 and 7,896.20

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Solution

The fourth proportional to 11,190.20, 16,790.70 and 7,896.20 is: 11,848.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,190.20 : 16,790.70 = 7,896.20 : x
  2. Step 2: Convert to fraction form
    11,190.20/16,790.70 = 7,896.20/x
  3. Step 3: Cross multiply
    11,190.20x = 16,790.70 × 7,896.20
  4. Step 4: Simplify right side
    11,190.20x = 132,582,725.34
  5. Step 5: Solve for x
    x = 132,582,725.34/11,190.20
  6. Step 6: Final answer
    x = 11,848.11

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.