Home / 18,993.44-26,208.69-11,439.65

Finding the Fourth Proportional to 18,993.44, 26,208.69 and 11,439.65

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Solution

The fourth proportional to 18,993.44, 26,208.69 and 11,439.65 is: 15,785.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993.44 : 26,208.69 = 11,439.65 : x
  2. Step 2: Convert to fraction form
    18,993.44/26,208.69 = 11,439.65/x
  3. Step 3: Cross multiply
    18,993.44x = 26,208.69 × 11,439.65
  4. Step 4: Simplify right side
    18,993.44x = 299,818,240.56
  5. Step 5: Solve for x
    x = 299,818,240.56/18,993.44
  6. Step 6: Final answer
    x = 15,785.36

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Half scale
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Double scale
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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.