Home / 14,131.88-21,198.23-3,743.63

Finding the Fourth Proportional to 14,131.88, 21,198.23 and 3,743.63

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Solution

The fourth proportional to 14,131.88, 21,198.23 and 3,743.63 is: 5,615.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,131.88 : 21,198.23 = 3,743.63 : x
  2. Step 2: Convert to fraction form
    14,131.88/21,198.23 = 3,743.63/x
  3. Step 3: Cross multiply
    14,131.88x = 21,198.23 × 3,743.63
  4. Step 4: Simplify right side
    14,131.88x = 79,358,205.07
  5. Step 5: Solve for x
    x = 79,358,205.07/14,131.88
  6. Step 6: Final answer
    x = 5,615.55

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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.