Home / 9,128.66-13,694.37-2,886.59

Finding the Fourth Proportional to 9,128.66, 13,694.37 and 2,886.59

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Solution

The fourth proportional to 9,128.66, 13,694.37 and 2,886.59 is: 4,330.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,128.66 : 13,694.37 = 2,886.59 : x
  2. Step 2: Convert to fraction form
    9,128.66/13,694.37 = 2,886.59/x
  3. Step 3: Cross multiply
    9,128.66x = 13,694.37 × 2,886.59
  4. Step 4: Simplify right side
    9,128.66x = 39,530,054.91
  5. Step 5: Solve for x
    x = 39,530,054.91/9,128.66
  6. Step 6: Final answer
    x = 4,330.33

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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.