Home / 13,209.62-19,811.25-3,847.10

Finding the Fourth Proportional to 13,209.62, 19,811.25 and 3,847.10

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Solution

The fourth proportional to 13,209.62, 19,811.25 and 3,847.10 is: 5,769.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.62 : 19,811.25 = 3,847.10 : x
  2. Step 2: Convert to fraction form
    13,209.62/19,811.25 = 3,847.10/x
  3. Step 3: Cross multiply
    13,209.62x = 19,811.25 × 3,847.10
  4. Step 4: Simplify right side
    13,209.62x = 76,215,859.88
  5. Step 5: Solve for x
    x = 76,215,859.88/13,209.62
  6. Step 6: Final answer
    x = 5,769.72

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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.