Home / 11,399.45-15,728.67-6,924.56

Finding the Fourth Proportional to 11,399.45, 15,728.67 and 6,924.56

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Solution

The fourth proportional to 11,399.45, 15,728.67 and 6,924.56 is: 9,554.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,399.45 : 15,728.67 = 6,924.56 : x
  2. Step 2: Convert to fraction form
    11,399.45/15,728.67 = 6,924.56/x
  3. Step 3: Cross multiply
    11,399.45x = 15,728.67 × 6,924.56
  4. Step 4: Simplify right side
    11,399.45x = 108,914,040.49
  5. Step 5: Solve for x
    x = 108,914,040.49/11,399.45
  6. Step 6: Final answer
    x = 9,554.33

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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.