Home / 11,195.70-15,450.84-7,412.28

Finding the Fourth Proportional to 11,195.70, 15,450.84 and 7,412.28

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Solution

The fourth proportional to 11,195.70, 15,450.84 and 7,412.28 is: 10,229.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,195.70 : 15,450.84 = 7,412.28 : x
  2. Step 2: Convert to fraction form
    11,195.70/15,450.84 = 7,412.28/x
  3. Step 3: Cross multiply
    11,195.70x = 15,450.84 × 7,412.28
  4. Step 4: Simplify right side
    11,195.70x = 114,525,952.32
  5. Step 5: Solve for x
    x = 114,525,952.32/11,195.70
  6. Step 6: Final answer
    x = 10,229.46

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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.