Home / 12,079.42-18,116.84-3,759.54

Finding the Fourth Proportional to 12,079.42, 18,116.84 and 3,759.54

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Solution

The fourth proportional to 12,079.42, 18,116.84 and 3,759.54 is: 5,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.42 : 18,116.84 = 3,759.54 : x
  2. Step 2: Convert to fraction form
    12,079.42/18,116.84 = 3,759.54/x
  3. Step 3: Cross multiply
    12,079.42x = 18,116.84 × 3,759.54
  4. Step 4: Simplify right side
    12,079.42x = 68,110,984.65
  5. Step 5: Solve for x
    x = 68,110,984.65/12,079.42
  6. Step 6: Final answer
    x = 5,638.60

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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.