Home / 12,997.22-19,491.46-4,230.07

Finding the Fourth Proportional to 12,997.22, 19,491.46 and 4,230.07

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Solution

The fourth proportional to 12,997.22, 19,491.46 and 4,230.07 is: 6,343.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997.22 : 19,491.46 = 4,230.07 : x
  2. Step 2: Convert to fraction form
    12,997.22/19,491.46 = 4,230.07/x
  3. Step 3: Cross multiply
    12,997.22x = 19,491.46 × 4,230.07
  4. Step 4: Simplify right side
    12,997.22x = 82,450,180.90
  5. Step 5: Solve for x
    x = 82,450,180.90/12,997.22
  6. Step 6: Final answer
    x = 6,343.68

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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.