Home / 15,855.33-21,836.22-12,257.04

Finding the Fourth Proportional to 15,855.33, 21,836.22 and 12,257.04

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Solution

The fourth proportional to 15,855.33, 21,836.22 and 12,257.04 is: 16,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,855.33 : 21,836.22 = 12,257.04 : x
  2. Step 2: Convert to fraction form
    15,855.33/21,836.22 = 12,257.04/x
  3. Step 3: Cross multiply
    15,855.33x = 21,836.22 × 12,257.04
  4. Step 4: Simplify right side
    15,855.33x = 267,647,421.99
  5. Step 5: Solve for x
    x = 267,647,421.99/15,855.33
  6. Step 6: Final answer
    x = 16,880.60

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1.5x scale

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.