Home / 8,861.55-13,291.62-3,863.80

Finding the Fourth Proportional to 8,861.55, 13,291.62 and 3,863.80

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Solution

The fourth proportional to 8,861.55, 13,291.62 and 3,863.80 is: 5,795.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.55 : 13,291.62 = 3,863.80 : x
  2. Step 2: Convert to fraction form
    8,861.55/13,291.62 = 3,863.80/x
  3. Step 3: Cross multiply
    8,861.55x = 13,291.62 × 3,863.80
  4. Step 4: Simplify right side
    8,861.55x = 51,356,161.36
  5. Step 5: Solve for x
    x = 51,356,161.36/8,861.55
  6. Step 6: Final answer
    x = 5,795.39

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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.