Home / 13,733.87-20,611.74-5,415.98

Finding the Fourth Proportional to 13,733.87, 20,611.74 and 5,415.98

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Solution

The fourth proportional to 13,733.87, 20,611.74 and 5,415.98 is: 8,128.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,733.87 : 20,611.74 = 5,415.98 : x
  2. Step 2: Convert to fraction form
    13,733.87/20,611.74 = 5,415.98/x
  3. Step 3: Cross multiply
    13,733.87x = 20,611.74 × 5,415.98
  4. Step 4: Simplify right side
    13,733.87x = 111,632,668.55
  5. Step 5: Solve for x
    x = 111,632,668.55/13,733.87
  6. Step 6: Final answer
    x = 8,128.28

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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.