Home / 11,990.44-17,987.74-3,670.26

Finding the Fourth Proportional to 11,990.44, 17,987.74 and 3,670.26

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Solution

The fourth proportional to 11,990.44, 17,987.74 and 3,670.26 is: 5,506.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.44 : 17,987.74 = 3,670.26 : x
  2. Step 2: Convert to fraction form
    11,990.44/17,987.74 = 3,670.26/x
  3. Step 3: Cross multiply
    11,990.44x = 17,987.74 × 3,670.26
  4. Step 4: Simplify right side
    11,990.44x = 66,019,682.61
  5. Step 5: Solve for x
    x = 66,019,682.61/11,990.44
  6. Step 6: Final answer
    x = 5,506.03

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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.