Home / 11,168.54-15,409.44-7,191.96

Finding the Fourth Proportional to 11,168.54, 15,409.44 and 7,191.96

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Solution

The fourth proportional to 11,168.54, 15,409.44 and 7,191.96 is: 9,922.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168.54 : 15,409.44 = 7,191.96 : x
  2. Step 2: Convert to fraction form
    11,168.54/15,409.44 = 7,191.96/x
  3. Step 3: Cross multiply
    11,168.54x = 15,409.44 × 7,191.96
  4. Step 4: Simplify right side
    11,168.54x = 110,824,076.10
  5. Step 5: Solve for x
    x = 110,824,076.10/11,168.54
  6. Step 6: Final answer
    x = 9,922.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.