Home / 12,185.34-18,273.38-4,785.75

Finding the Fourth Proportional to 12,185.34, 18,273.38 and 4,785.75

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Solution

The fourth proportional to 12,185.34, 18,273.38 and 4,785.75 is: 7,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,185.34 : 18,273.38 = 4,785.75 : x
  2. Step 2: Convert to fraction form
    12,185.34/18,273.38 = 4,785.75/x
  3. Step 3: Cross multiply
    12,185.34x = 18,273.38 × 4,785.75
  4. Step 4: Simplify right side
    12,185.34x = 87,451,804.41
  5. Step 5: Solve for x
    x = 87,451,804.41/12,185.34
  6. Step 6: Final answer
    x = 7,176.81

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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.