Home / 8,158.36-12,235.76-3,771.66

Finding the Fourth Proportional to 8,158.36, 12,235.76 and 3,771.66

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Solution

The fourth proportional to 8,158.36, 12,235.76 and 3,771.66 is: 5,656.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.36 : 12,235.76 = 3,771.66 : x
  2. Step 2: Convert to fraction form
    8,158.36/12,235.76 = 3,771.66/x
  3. Step 3: Cross multiply
    8,158.36x = 12,235.76 × 3,771.66
  4. Step 4: Simplify right side
    8,158.36x = 46,149,126.56
  5. Step 5: Solve for x
    x = 46,149,126.56/8,158.36
  6. Step 6: Final answer
    x = 5,656.67

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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.