Home / 12,382.13-18,573.20-3,617.12

Finding the Fourth Proportional to 12,382.13, 18,573.20 and 3,617.12

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Solution

The fourth proportional to 12,382.13, 18,573.20 and 3,617.12 is: 5,425.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.13 : 18,573.20 = 3,617.12 : x
  2. Step 2: Convert to fraction form
    12,382.13/18,573.20 = 3,617.12/x
  3. Step 3: Cross multiply
    12,382.13x = 18,573.20 × 3,617.12
  4. Step 4: Simplify right side
    12,382.13x = 67,181,382.23
  5. Step 5: Solve for x
    x = 67,181,382.23/12,382.13
  6. Step 6: Final answer
    x = 5,425.67

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