Home / 12,181.94-18,261.98-4,791.71

Finding the Fourth Proportional to 12,181.94, 18,261.98 and 4,791.71

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Solution

The fourth proportional to 12,181.94, 18,261.98 and 4,791.71 is: 7,183.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.94 : 18,261.98 = 4,791.71 : x
  2. Step 2: Convert to fraction form
    12,181.94/18,261.98 = 4,791.71/x
  3. Step 3: Cross multiply
    12,181.94x = 18,261.98 × 4,791.71
  4. Step 4: Simplify right side
    12,181.94x = 87,506,112.19
  5. Step 5: Solve for x
    x = 87,506,112.19/12,181.94
  6. Step 6: Final answer
    x = 7,183.27

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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.