Home / 8,219.90-12,323.97-3,834.96

Finding the Fourth Proportional to 8,219.90, 12,323.97 and 3,834.96

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Solution

The fourth proportional to 8,219.90, 12,323.97 and 3,834.96 is: 5,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.90 : 12,323.97 = 3,834.96 : x
  2. Step 2: Convert to fraction form
    8,219.90/12,323.97 = 3,834.96/x
  3. Step 3: Cross multiply
    8,219.90x = 12,323.97 × 3,834.96
  4. Step 4: Simplify right side
    8,219.90x = 47,261,931.99
  5. Step 5: Solve for x
    x = 47,261,931.99/8,219.90
  6. Step 6: Final answer
    x = 5,749.70

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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.