Home / 8,769.87-12,102.46-4,791.05

Finding the Fourth Proportional to 8,769.87, 12,102.46 and 4,791.05

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Solution

The fourth proportional to 8,769.87, 12,102.46 and 4,791.05 is: 6,611.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,769.87 : 12,102.46 = 4,791.05 : x
  2. Step 2: Convert to fraction form
    8,769.87/12,102.46 = 4,791.05/x
  3. Step 3: Cross multiply
    8,769.87x = 12,102.46 × 4,791.05
  4. Step 4: Simplify right side
    8,769.87x = 57,983,490.83
  5. Step 5: Solve for x
    x = 57,983,490.83/8,769.87
  6. Step 6: Final answer
    x = 6,611.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.