Home / 13,782.24-20,674.32-3,922.24

Finding the Fourth Proportional to 13,782.24, 20,674.32 and 3,922.24

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Solution

The fourth proportional to 13,782.24, 20,674.32 and 3,922.24 is: 5,883.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.24 : 20,674.32 = 3,922.24 : x
  2. Step 2: Convert to fraction form
    13,782.24/20,674.32 = 3,922.24/x
  3. Step 3: Cross multiply
    13,782.24x = 20,674.32 × 3,922.24
  4. Step 4: Simplify right side
    13,782.24x = 81,089,644.88
  5. Step 5: Solve for x
    x = 81,089,644.88/13,782.24
  6. Step 6: Final answer
    x = 5,883.63

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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.