Home / 13,782.74-20,672.99-4,420.23

Finding the Fourth Proportional to 13,782.74, 20,672.99 and 4,420.23

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Solution

The fourth proportional to 13,782.74, 20,672.99 and 4,420.23 is: 6,629.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.74 : 20,672.99 = 4,420.23 : x
  2. Step 2: Convert to fraction form
    13,782.74/20,672.99 = 4,420.23/x
  3. Step 3: Cross multiply
    13,782.74x = 20,672.99 × 4,420.23
  4. Step 4: Simplify right side
    13,782.74x = 91,379,348.49
  5. Step 5: Solve for x
    x = 91,379,348.49/13,782.74
  6. Step 6: Final answer
    x = 6,629.99

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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.