Home / 13,847.91-20,769.36-3,984.77

Finding the Fourth Proportional to 13,847.91, 20,769.36 and 3,984.77

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Solution

The fourth proportional to 13,847.91, 20,769.36 and 3,984.77 is: 5,976.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,847.91 : 20,769.36 = 3,984.77 : x
  2. Step 2: Convert to fraction form
    13,847.91/20,769.36 = 3,984.77/x
  3. Step 3: Cross multiply
    13,847.91x = 20,769.36 × 3,984.77
  4. Step 4: Simplify right side
    13,847.91x = 82,761,018.80
  5. Step 5: Solve for x
    x = 82,761,018.80/13,847.91
  6. Step 6: Final answer
    x = 5,976.43

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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.