Home / 12,994.57-19,489.83-4,229.43

Finding the Fourth Proportional to 12,994.57, 19,489.83 and 4,229.43

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Solution

The fourth proportional to 12,994.57, 19,489.83 and 4,229.43 is: 6,343.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,994.57 : 19,489.83 = 4,229.43 : x
  2. Step 2: Convert to fraction form
    12,994.57/19,489.83 = 4,229.43/x
  3. Step 3: Cross multiply
    12,994.57x = 19,489.83 × 4,229.43
  4. Step 4: Simplify right side
    12,994.57x = 82,430,871.70
  5. Step 5: Solve for x
    x = 82,430,871.70/12,994.57
  6. Step 6: Final answer
    x = 6,343.49

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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.