Home / 6,983.36-9,636.72-3,999.44

Finding the Fourth Proportional to 6,983.36, 9,636.72 and 3,999.44

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Solution

The fourth proportional to 6,983.36, 9,636.72 and 3,999.44 is: 5,519.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,983.36 : 9,636.72 = 3,999.44 : x
  2. Step 2: Convert to fraction form
    6,983.36/9,636.72 = 3,999.44/x
  3. Step 3: Cross multiply
    6,983.36x = 9,636.72 × 3,999.44
  4. Step 4: Simplify right side
    6,983.36x = 38,541,483.44
  5. Step 5: Solve for x
    x = 38,541,483.44/6,983.36
  6. Step 6: Final answer
    x = 5,519.05

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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.