Home / 16,855.70-25,271.40-11,015.60

Finding the Fourth Proportional to 16,855.70, 25,271.40 and 11,015.60

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Solution

The fourth proportional to 16,855.70, 25,271.40 and 11,015.60 is: 16,515.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,855.70 : 25,271.40 = 11,015.60 : x
  2. Step 2: Convert to fraction form
    16,855.70/25,271.40 = 11,015.60/x
  3. Step 3: Cross multiply
    16,855.70x = 25,271.40 × 11,015.60
  4. Step 4: Simplify right side
    16,855.70x = 278,379,633.84
  5. Step 5: Solve for x
    x = 278,379,633.84/16,855.70
  6. Step 6: Final answer
    x = 16,515.46

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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.