Home / 12,122.32-18,183.49-3,803.07

Finding the Fourth Proportional to 12,122.32, 18,183.49 and 3,803.07

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Solution

The fourth proportional to 12,122.32, 18,183.49 and 3,803.07 is: 5,704.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.32 : 18,183.49 = 3,803.07 : x
  2. Step 2: Convert to fraction form
    12,122.32/18,183.49 = 3,803.07/x
  3. Step 3: Cross multiply
    12,122.32x = 18,183.49 × 3,803.07
  4. Step 4: Simplify right side
    12,122.32x = 69,153,085.31
  5. Step 5: Solve for x
    x = 69,153,085.31/12,122.32
  6. Step 6: Final answer
    x = 5,704.61

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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.