Home / 13,183.41-18,193.14-7,215.13

Finding the Fourth Proportional to 13,183.41, 18,193.14 and 7,215.13

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Solution

The fourth proportional to 13,183.41, 18,193.14 and 7,215.13 is: 9,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.41 : 18,193.14 = 7,215.13 : x
  2. Step 2: Convert to fraction form
    13,183.41/18,193.14 = 7,215.13/x
  3. Step 3: Cross multiply
    13,183.41x = 18,193.14 × 7,215.13
  4. Step 4: Simplify right side
    13,183.41x = 131,265,870.21
  5. Step 5: Solve for x
    x = 131,265,870.21/13,183.41
  6. Step 6: Final answer
    x = 9,956.90

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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.