Home / 13,249.44-18,277.20-7,940.88

Finding the Fourth Proportional to 13,249.44, 18,277.20 and 7,940.88

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Solution

The fourth proportional to 13,249.44, 18,277.20 and 7,940.88 is: 10,954.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.44 : 18,277.20 = 7,940.88 : x
  2. Step 2: Convert to fraction form
    13,249.44/18,277.20 = 7,940.88/x
  3. Step 3: Cross multiply
    13,249.44x = 18,277.20 × 7,940.88
  4. Step 4: Simplify right side
    13,249.44x = 145,137,051.94
  5. Step 5: Solve for x
    x = 145,137,051.94/13,249.44
  6. Step 6: Final answer
    x = 10,954.20

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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.