Home / 16,855.58-25,243.94-13,321.87

Finding the Fourth Proportional to 16,855.58, 25,243.94 and 13,321.87

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Solution

The fourth proportional to 16,855.58, 25,243.94 and 13,321.87 is: 19,951.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,855.58 : 25,243.94 = 13,321.87 : x
  2. Step 2: Convert to fraction form
    16,855.58/25,243.94 = 13,321.87/x
  3. Step 3: Cross multiply
    16,855.58x = 25,243.94 × 13,321.87
  4. Step 4: Simplify right side
    16,855.58x = 336,296,457.16
  5. Step 5: Solve for x
    x = 336,296,457.16/16,855.58
  6. Step 6: Final answer
    x = 19,951.65

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1.5x scale

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.