Home / 13,806.81-19,050.78-8,771.85

Finding the Fourth Proportional to 13,806.81, 19,050.78 and 8,771.85

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Solution

The fourth proportional to 13,806.81, 19,050.78 and 8,771.85 is: 12,103.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.81 : 19,050.78 = 8,771.85 : x
  2. Step 2: Convert to fraction form
    13,806.81/19,050.78 = 8,771.85/x
  3. Step 3: Cross multiply
    13,806.81x = 19,050.78 × 8,771.85
  4. Step 4: Simplify right side
    13,806.81x = 167,110,584.54
  5. Step 5: Solve for x
    x = 167,110,584.54/13,806.81
  6. Step 6: Final answer
    x = 12,103.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.