Home / 13,635.37-20,453.09-4,147.77

Finding the Fourth Proportional to 13,635.37, 20,453.09 and 4,147.77

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Solution

The fourth proportional to 13,635.37, 20,453.09 and 4,147.77 is: 6,221.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635.37 : 20,453.09 = 4,147.77 : x
  2. Step 2: Convert to fraction form
    13,635.37/20,453.09 = 4,147.77/x
  3. Step 3: Cross multiply
    13,635.37x = 20,453.09 × 4,147.77
  4. Step 4: Simplify right side
    13,635.37x = 84,834,713.11
  5. Step 5: Solve for x
    x = 84,834,713.11/13,635.37
  6. Step 6: Final answer
    x = 6,221.67

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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.