Home / 13,625.50-20,438.70-3,764.74

Finding the Fourth Proportional to 13,625.50, 20,438.70 and 3,764.74

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Solution

The fourth proportional to 13,625.50, 20,438.70 and 3,764.74 is: 5,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.50 : 20,438.70 = 3,764.74 : x
  2. Step 2: Convert to fraction form
    13,625.50/20,438.70 = 3,764.74/x
  3. Step 3: Cross multiply
    13,625.50x = 20,438.70 × 3,764.74
  4. Step 4: Simplify right side
    13,625.50x = 76,946,391.44
  5. Step 5: Solve for x
    x = 76,946,391.44/13,625.50
  6. Step 6: Final answer
    x = 5,647.23

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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.