Home / 19,869.40-29,793.30-8,183.80

Finding the Fourth Proportional to 19,869.40, 29,793.30 and 8,183.80

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Solution

The fourth proportional to 19,869.40, 29,793.30 and 8,183.80 is: 12,271.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869.40 : 29,793.30 = 8,183.80 : x
  2. Step 2: Convert to fraction form
    19,869.40/29,793.30 = 8,183.80/x
  3. Step 3: Cross multiply
    19,869.40x = 29,793.30 × 8,183.80
  4. Step 4: Simplify right side
    19,869.40x = 243,822,408.54
  5. Step 5: Solve for x
    x = 243,822,408.54/19,869.40
  6. Step 6: Final answer
    x = 12,271.25

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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.