Home / 6,384.12-8,814.33-3,997.68

Finding the Fourth Proportional to 6,384.12, 8,814.33 and 3,997.68

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Solution

The fourth proportional to 6,384.12, 8,814.33 and 3,997.68 is: 5,519.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,384.12 : 8,814.33 = 3,997.68 : x
  2. Step 2: Convert to fraction form
    6,384.12/8,814.33 = 3,997.68/x
  3. Step 3: Cross multiply
    6,384.12x = 8,814.33 × 3,997.68
  4. Step 4: Simplify right side
    6,384.12x = 35,236,870.75
  5. Step 5: Solve for x
    x = 35,236,870.75/6,384.12
  6. Step 6: Final answer
    x = 5,519.46

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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.