Home / 7,182.14-9,910.35-3,995.19

Finding the Fourth Proportional to 7,182.14, 9,910.35 and 3,995.19

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Solution

The fourth proportional to 7,182.14, 9,910.35 and 3,995.19 is: 5,512.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.14 : 9,910.35 = 3,995.19 : x
  2. Step 2: Convert to fraction form
    7,182.14/9,910.35 = 3,995.19/x
  3. Step 3: Cross multiply
    7,182.14x = 9,910.35 × 3,995.19
  4. Step 4: Simplify right side
    7,182.14x = 39,593,731.22
  5. Step 5: Solve for x
    x = 39,593,731.22/7,182.14
  6. Step 6: Final answer
    x = 5,512.81

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Double scale
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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.