Home / 13,855.24-20,785.98-4,621

Finding the Fourth Proportional to 13,855.24, 20,785.98 and 4,621

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Solution

The fourth proportional to 13,855.24, 20,785.98 and 4,621 is: 6,932.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.24 : 20,785.98 = 4,621 : x
  2. Step 2: Convert to fraction form
    13,855.24/20,785.98 = 4,621/x
  3. Step 3: Cross multiply
    13,855.24x = 20,785.98 × 4,621
  4. Step 4: Simplify right side
    13,855.24x = 96,052,013.58
  5. Step 5: Solve for x
    x = 96,052,013.58/13,855.24
  6. Step 6: Final answer
    x = 6,932.54

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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.