Home / 11,836.56-16,336.44-7,121.28

Finding the Fourth Proportional to 11,836.56, 16,336.44 and 7,121.28

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Solution

The fourth proportional to 11,836.56, 16,336.44 and 7,121.28 is: 9,828.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,836.56 : 16,336.44 = 7,121.28 : x
  2. Step 2: Convert to fraction form
    11,836.56/16,336.44 = 7,121.28/x
  3. Step 3: Cross multiply
    11,836.56x = 16,336.44 × 7,121.28
  4. Step 4: Simplify right side
    11,836.56x = 116,336,363.44
  5. Step 5: Solve for x
    x = 116,336,363.44/11,836.56
  6. Step 6: Final answer
    x = 9,828.56

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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.