Home / 13,747.45-20,622.50-3,887.05

Finding the Fourth Proportional to 13,747.45, 20,622.50 and 3,887.05

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Solution

The fourth proportional to 13,747.45, 20,622.50 and 3,887.05 is: 5,830.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.45 : 20,622.50 = 3,887.05 : x
  2. Step 2: Convert to fraction form
    13,747.45/20,622.50 = 3,887.05/x
  3. Step 3: Cross multiply
    13,747.45x = 20,622.50 × 3,887.05
  4. Step 4: Simplify right side
    13,747.45x = 80,160,735.32
  5. Step 5: Solve for x
    x = 80,160,735.32/13,747.45
  6. Step 6: Final answer
    x = 5,830.95

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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.