Home / 13,782.24-20,673.21-3,393.99

Finding the Fourth Proportional to 13,782.24, 20,673.21 and 3,393.99

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Solution

The fourth proportional to 13,782.24, 20,673.21 and 3,393.99 is: 5,090.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.24 : 20,673.21 = 3,393.99 : x
  2. Step 2: Convert to fraction form
    13,782.24/20,673.21 = 3,393.99/x
  3. Step 3: Cross multiply
    13,782.24x = 20,673.21 × 3,393.99
  4. Step 4: Simplify right side
    13,782.24x = 70,164,668.01
  5. Step 5: Solve for x
    x = 70,164,668.01/13,782.24
  6. Step 6: Final answer
    x = 5,090.95

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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.