Home / 8,331.70-12,485.22-3,647.38

Finding the Fourth Proportional to 8,331.70, 12,485.22 and 3,647.38

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Solution

The fourth proportional to 8,331.70, 12,485.22 and 3,647.38 is: 5,465.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,331.70 : 12,485.22 = 3,647.38 : x
  2. Step 2: Convert to fraction form
    8,331.70/12,485.22 = 3,647.38/x
  3. Step 3: Cross multiply
    8,331.70x = 12,485.22 × 3,647.38
  4. Step 4: Simplify right side
    8,331.70x = 45,538,341.72
  5. Step 5: Solve for x
    x = 45,538,341.72/8,331.70
  6. Step 6: Final answer
    x = 5,465.67

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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.