Home / 11,189.70-16,784.55-9,936.90

Finding the Fourth Proportional to 11,189.70, 16,784.55 and 9,936.90

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Solution

The fourth proportional to 11,189.70, 16,784.55 and 9,936.90 is: 14,905.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.70 : 16,784.55 = 9,936.90 : x
  2. Step 2: Convert to fraction form
    11,189.70/16,784.55 = 9,936.90/x
  3. Step 3: Cross multiply
    11,189.70x = 16,784.55 × 9,936.90
  4. Step 4: Simplify right side
    11,189.70x = 166,786,394.90
  5. Step 5: Solve for x
    x = 166,786,394.90/11,189.70
  6. Step 6: Final answer
    x = 14,905.35

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Similar ratio
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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.