Home / 18,194.40-27,226.80-12,621.60

Finding the Fourth Proportional to 18,194.40, 27,226.80 and 12,621.60

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Solution

The fourth proportional to 18,194.40, 27,226.80 and 12,621.60 is: 18,887.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,194.40 : 27,226.80 = 12,621.60 : x
  2. Step 2: Convert to fraction form
    18,194.40/27,226.80 = 12,621.60/x
  3. Step 3: Cross multiply
    18,194.40x = 27,226.80 × 12,621.60
  4. Step 4: Simplify right side
    18,194.40x = 343,645,778.88
  5. Step 5: Solve for x
    x = 343,645,778.88/18,194.40
  6. Step 6: Final answer
    x = 18,887.45

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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.