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Finding the Fourth Proportional to 11,093.70, 16,640.55 and 7,157.10

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Solution

The fourth proportional to 11,093.70, 16,640.55 and 7,157.10 is: 10,735.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,093.70 : 16,640.55 = 7,157.10 : x
  2. Step 2: Convert to fraction form
    11,093.70/16,640.55 = 7,157.10/x
  3. Step 3: Cross multiply
    11,093.70x = 16,640.55 × 7,157.10
  4. Step 4: Simplify right side
    11,093.70x = 119,098,080.41
  5. Step 5: Solve for x
    x = 119,098,080.41/11,093.70
  6. Step 6: Final answer
    x = 10,735.65

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Double scale
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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.