Home / 13,183.54-18,193.32-7,215.59

Finding the Fourth Proportional to 13,183.54, 18,193.32 and 7,215.59

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Solution

The fourth proportional to 13,183.54, 18,193.32 and 7,215.59 is: 9,957.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.54 : 18,193.32 = 7,215.59 : x
  2. Step 2: Convert to fraction form
    13,183.54/18,193.32 = 7,215.59/x
  3. Step 3: Cross multiply
    13,183.54x = 18,193.32 × 7,215.59
  4. Step 4: Simplify right side
    13,183.54x = 131,275,590.40
  5. Step 5: Solve for x
    x = 131,275,590.40/13,183.54
  6. Step 6: Final answer
    x = 9,957.54

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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.