Home / 7,409.20-11,124.60-5,767.60

Finding the Fourth Proportional to 7,409.20, 11,124.60 and 5,767.60

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Solution

The fourth proportional to 7,409.20, 11,124.60 and 5,767.60 is: 8,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,409.20 : 11,124.60 = 5,767.60 : x
  2. Step 2: Convert to fraction form
    7,409.20/11,124.60 = 5,767.60/x
  3. Step 3: Cross multiply
    7,409.20x = 11,124.60 × 5,767.60
  4. Step 4: Simplify right side
    7,409.20x = 64,162,242.96
  5. Step 5: Solve for x
    x = 64,162,242.96/7,409.20
  6. Step 6: Final answer
    x = 8,659.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.