Home / 13,729.44-20,570.62-9,218.04

Finding the Fourth Proportional to 13,729.44, 20,570.62 and 9,218.04

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Solution

The fourth proportional to 13,729.44, 20,570.62 and 9,218.04 is: 13,811.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729.44 : 20,570.62 = 9,218.04 : x
  2. Step 2: Convert to fraction form
    13,729.44/20,570.62 = 9,218.04/x
  3. Step 3: Cross multiply
    13,729.44x = 20,570.62 × 9,218.04
  4. Step 4: Simplify right side
    13,729.44x = 189,620,797.98
  5. Step 5: Solve for x
    x = 189,620,797.98/13,729.44
  6. Step 6: Final answer
    x = 13,811.26

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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.