Home / 11,621.70-17,427.94-4,222.12

Finding the Fourth Proportional to 11,621.70, 17,427.94 and 4,222.12

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Solution

The fourth proportional to 11,621.70, 17,427.94 and 4,222.12 is: 6,331.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,621.70 : 17,427.94 = 4,222.12 : x
  2. Step 2: Convert to fraction form
    11,621.70/17,427.94 = 4,222.12/x
  3. Step 3: Cross multiply
    11,621.70x = 17,427.94 × 4,222.12
  4. Step 4: Simplify right side
    11,621.70x = 73,582,854.03
  5. Step 5: Solve for x
    x = 73,582,854.03/11,621.70
  6. Step 6: Final answer
    x = 6,331.51

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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.