Home / 11,043.33-15,232.12-7,638.85

Finding the Fourth Proportional to 11,043.33, 15,232.12 and 7,638.85

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Solution

The fourth proportional to 11,043.33, 15,232.12 and 7,638.85 is: 10,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,043.33 : 15,232.12 = 7,638.85 : x
  2. Step 2: Convert to fraction form
    11,043.33/15,232.12 = 7,638.85/x
  3. Step 3: Cross multiply
    11,043.33x = 15,232.12 × 7,638.85
  4. Step 4: Simplify right side
    11,043.33x = 116,355,879.86
  5. Step 5: Solve for x
    x = 116,355,879.86/11,043.33
  6. Step 6: Final answer
    x = 10,536.30

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.