Home / 11,939.58-17,915.20-4,823.54

Finding the Fourth Proportional to 11,939.58, 17,915.20 and 4,823.54

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Solution

The fourth proportional to 11,939.58, 17,915.20 and 4,823.54 is: 7,237.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.58 : 17,915.20 = 4,823.54 : x
  2. Step 2: Convert to fraction form
    11,939.58/17,915.20 = 4,823.54/x
  3. Step 3: Cross multiply
    11,939.58x = 17,915.20 × 4,823.54
  4. Step 4: Simplify right side
    11,939.58x = 86,414,683.81
  5. Step 5: Solve for x
    x = 86,414,683.81/11,939.58
  6. Step 6: Final answer
    x = 7,237.67

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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.