Home / 11,178.34-16,767.66-2,858.42

Finding the Fourth Proportional to 11,178.34, 16,767.66 and 2,858.42

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Solution

The fourth proportional to 11,178.34, 16,767.66 and 2,858.42 is: 4,287.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.34 : 16,767.66 = 2,858.42 : x
  2. Step 2: Convert to fraction form
    11,178.34/16,767.66 = 2,858.42/x
  3. Step 3: Cross multiply
    11,178.34x = 16,767.66 × 2,858.42
  4. Step 4: Simplify right side
    11,178.34x = 47,929,014.70
  5. Step 5: Solve for x
    x = 47,929,014.70/11,178.34
  6. Step 6: Final answer
    x = 4,287.67

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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.