Home / 11,990.32-17,987.52-3,669.46

Finding the Fourth Proportional to 11,990.32, 17,987.52 and 3,669.46

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Solution

The fourth proportional to 11,990.32, 17,987.52 and 3,669.46 is: 5,504.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.32 : 17,987.52 = 3,669.46 : x
  2. Step 2: Convert to fraction form
    11,990.32/17,987.52 = 3,669.46/x
  3. Step 3: Cross multiply
    11,990.32x = 17,987.52 × 3,669.46
  4. Step 4: Simplify right side
    11,990.32x = 66,004,485.14
  5. Step 5: Solve for x
    x = 66,004,485.14/11,990.32
  6. Step 6: Final answer
    x = 5,504.81

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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.