Home / 11,311.56-16,968.36-2,991.48

Finding the Fourth Proportional to 11,311.56, 16,968.36 and 2,991.48

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Solution

The fourth proportional to 11,311.56, 16,968.36 and 2,991.48 is: 4,487.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.56 : 16,968.36 = 2,991.48 : x
  2. Step 2: Convert to fraction form
    11,311.56/16,968.36 = 2,991.48/x
  3. Step 3: Cross multiply
    11,311.56x = 16,968.36 × 2,991.48
  4. Step 4: Simplify right side
    11,311.56x = 50,760,509.57
  5. Step 5: Solve for x
    x = 50,760,509.57/11,311.56
  6. Step 6: Final answer
    x = 4,487.49

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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.