Home / 12,224.54-18,322.97-8,427.88

Finding the Fourth Proportional to 12,224.54, 18,322.97 and 8,427.88

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Solution

The fourth proportional to 12,224.54, 18,322.97 and 8,427.88 is: 12,632.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,224.54 : 18,322.97 = 8,427.88 : x
  2. Step 2: Convert to fraction form
    12,224.54/18,322.97 = 8,427.88/x
  3. Step 3: Cross multiply
    12,224.54x = 18,322.97 × 8,427.88
  4. Step 4: Simplify right side
    12,224.54x = 154,423,704.46
  5. Step 5: Solve for x
    x = 154,423,704.46/12,224.54
  6. Step 6: Final answer
    x = 12,632.28

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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.