Home / 11,222.70-16,835.67-3,432.12

Finding the Fourth Proportional to 11,222.70, 16,835.67 and 3,432.12

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Solution

The fourth proportional to 11,222.70, 16,835.67 and 3,432.12 is: 5,148.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,222.70 : 16,835.67 = 3,432.12 : x
  2. Step 2: Convert to fraction form
    11,222.70/16,835.67 = 3,432.12/x
  3. Step 3: Cross multiply
    11,222.70x = 16,835.67 × 3,432.12
  4. Step 4: Simplify right side
    11,222.70x = 57,782,039.72
  5. Step 5: Solve for x
    x = 57,782,039.72/11,222.70
  6. Step 6: Final answer
    x = 5,148.68

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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.