Home / 16,855.20-25,282.80-8,085.60

Finding the Fourth Proportional to 16,855.20, 25,282.80 and 8,085.60

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Solution

The fourth proportional to 16,855.20, 25,282.80 and 8,085.60 is: 12,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,855.20 : 25,282.80 = 8,085.60 : x
  2. Step 2: Convert to fraction form
    16,855.20/25,282.80 = 8,085.60/x
  3. Step 3: Cross multiply
    16,855.20x = 25,282.80 × 8,085.60
  4. Step 4: Simplify right side
    16,855.20x = 204,426,607.68
  5. Step 5: Solve for x
    x = 204,426,607.68/16,855.20
  6. Step 6: Final answer
    x = 12,128.40

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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.