Home / 12,181.58-18,273.02-3,860.96

Finding the Fourth Proportional to 12,181.58, 18,273.02 and 3,860.96

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Solution

The fourth proportional to 12,181.58, 18,273.02 and 3,860.96 is: 5,791.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,181.58 : 18,273.02 = 3,860.96 : x
  2. Step 2: Convert to fraction form
    12,181.58/18,273.02 = 3,860.96/x
  3. Step 3: Cross multiply
    12,181.58x = 18,273.02 × 3,860.96
  4. Step 4: Simplify right side
    12,181.58x = 70,551,350.88
  5. Step 5: Solve for x
    x = 70,551,350.88/12,181.58
  6. Step 6: Final answer
    x = 5,791.64

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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.