Home / 13,857.21-20,795.84-5,539.55

Finding the Fourth Proportional to 13,857.21, 20,795.84 and 5,539.55

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Solution

The fourth proportional to 13,857.21, 20,795.84 and 5,539.55 is: 8,313.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.21 : 20,795.84 = 5,539.55 : x
  2. Step 2: Convert to fraction form
    13,857.21/20,795.84 = 5,539.55/x
  3. Step 3: Cross multiply
    13,857.21x = 20,795.84 × 5,539.55
  4. Step 4: Simplify right side
    13,857.21x = 115,199,481.66
  5. Step 5: Solve for x
    x = 115,199,481.66/13,857.21
  6. Step 6: Final answer
    x = 8,313.33

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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.