Home / 11,991.36-17,970.30-6,135.60

Finding the Fourth Proportional to 11,991.36, 17,970.30 and 6,135.60

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Solution

The fourth proportional to 11,991.36, 17,970.30 and 6,135.60 is: 9,194.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,991.36 : 17,970.30 = 6,135.60 : x
  2. Step 2: Convert to fraction form
    11,991.36/17,970.30 = 6,135.60/x
  3. Step 3: Cross multiply
    11,991.36x = 17,970.30 × 6,135.60
  4. Step 4: Simplify right side
    11,991.36x = 110,258,572.68
  5. Step 5: Solve for x
    x = 110,258,572.68/11,991.36
  6. Step 6: Final answer
    x = 9,194.83

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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.