Home / 8,861.96-13,288.93-2,619.81

Finding the Fourth Proportional to 8,861.96, 13,288.93 and 2,619.81

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Solution

The fourth proportional to 8,861.96, 13,288.93 and 2,619.81 is: 3,928.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.96 : 13,288.93 = 2,619.81 : x
  2. Step 2: Convert to fraction form
    8,861.96/13,288.93 = 2,619.81/x
  3. Step 3: Cross multiply
    8,861.96x = 13,288.93 × 2,619.81
  4. Step 4: Simplify right side
    8,861.96x = 34,814,471.70
  5. Step 5: Solve for x
    x = 34,814,471.70/8,861.96
  6. Step 6: Final answer
    x = 3,928.53

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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.