Home / 12,546.39-18,822.75-8,855.84

Finding the Fourth Proportional to 12,546.39, 18,822.75 and 8,855.84

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Solution

The fourth proportional to 12,546.39, 18,822.75 and 8,855.84 is: 13,285.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.39 : 18,822.75 = 8,855.84 : x
  2. Step 2: Convert to fraction form
    12,546.39/18,822.75 = 8,855.84/x
  3. Step 3: Cross multiply
    12,546.39x = 18,822.75 × 8,855.84
  4. Step 4: Simplify right side
    12,546.39x = 166,691,168.25
  5. Step 5: Solve for x
    x = 166,691,168.25/12,546.39
  6. Step 6: Final answer
    x = 13,285.99

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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.