Home / 18,131.46-25,015.00-11,847.48

Finding the Fourth Proportional to 18,131.46, 25,015.00 and 11,847.48

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Solution

The fourth proportional to 18,131.46, 25,015.00 and 11,847.48 is: 16,345.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.46 : 25,015.00 = 11,847.48 : x
  2. Step 2: Convert to fraction form
    18,131.46/25,015.00 = 11,847.48/x
  3. Step 3: Cross multiply
    18,131.46x = 25,015.00 × 11,847.48
  4. Step 4: Simplify right side
    18,131.46x = 296,364,785.02
  5. Step 5: Solve for x
    x = 296,364,785.02/18,131.46
  6. Step 6: Final answer
    x = 16,345.33

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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.