Home / 12,125.73-18,181.26-4,629.78

Finding the Fourth Proportional to 12,125.73, 18,181.26 and 4,629.78

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Solution

The fourth proportional to 12,125.73, 18,181.26 and 4,629.78 is: 6,941.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.73 : 18,181.26 = 4,629.78 : x
  2. Step 2: Convert to fraction form
    12,125.73/18,181.26 = 4,629.78/x
  3. Step 3: Cross multiply
    12,125.73x = 18,181.26 × 4,629.78
  4. Step 4: Simplify right side
    12,125.73x = 84,175,290.95
  5. Step 5: Solve for x
    x = 84,175,290.95/12,125.73
  6. Step 6: Final answer
    x = 6,941.88

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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.