Home / 11,222.45-15,493.43-7,450.72

Finding the Fourth Proportional to 11,222.45, 15,493.43 and 7,450.72

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Solution

The fourth proportional to 11,222.45, 15,493.43 and 7,450.72 is: 10,286.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,222.45 : 15,493.43 = 7,450.72 : x
  2. Step 2: Convert to fraction form
    11,222.45/15,493.43 = 7,450.72/x
  3. Step 3: Cross multiply
    11,222.45x = 15,493.43 × 7,450.72
  4. Step 4: Simplify right side
    11,222.45x = 115,437,094.05
  5. Step 5: Solve for x
    x = 115,437,094.05/11,222.45
  6. Step 6: Final answer
    x = 10,286.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.