Home / 12,997.28-19,495.46-4,231.98

Finding the Fourth Proportional to 12,997.28, 19,495.46 and 4,231.98

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Solution

The fourth proportional to 12,997.28, 19,495.46 and 4,231.98 is: 6,347.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.28 : 19,495.46 = 4,231.98 : x
  2. Step 2: Convert to fraction form
    12,997.28/19,495.46 = 4,231.98/x
  3. Step 3: Cross multiply
    12,997.28x = 19,495.46 × 4,231.98
  4. Step 4: Simplify right side
    12,997.28x = 82,504,407.39
  5. Step 5: Solve for x
    x = 82,504,407.39/12,997.28
  6. Step 6: Final answer
    x = 6,347.82

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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.