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Finding the Fourth Proportional to 6,967.99, 9,615.83 and 3,983.88

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Solution

The fourth proportional to 6,967.99, 9,615.83 and 3,983.88 is: 5,497.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,967.99 : 9,615.83 = 3,983.88 : x
  2. Step 2: Convert to fraction form
    6,967.99/9,615.83 = 3,983.88/x
  3. Step 3: Cross multiply
    6,967.99x = 9,615.83 × 3,983.88
  4. Step 4: Simplify right side
    6,967.99x = 38,308,351.37
  5. Step 5: Solve for x
    x = 38,308,351.37/6,967.99
  6. Step 6: Final answer
    x = 5,497.76

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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.