Home / 11,823.20-17,734.80-8,136.80

Finding the Fourth Proportional to 11,823.20, 17,734.80 and 8,136.80

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Solution

The fourth proportional to 11,823.20, 17,734.80 and 8,136.80 is: 12,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,823.20 : 17,734.80 = 8,136.80 : x
  2. Step 2: Convert to fraction form
    11,823.20/17,734.80 = 8,136.80/x
  3. Step 3: Cross multiply
    11,823.20x = 17,734.80 × 8,136.80
  4. Step 4: Simplify right side
    11,823.20x = 144,304,520.64
  5. Step 5: Solve for x
    x = 144,304,520.64/11,823.20
  6. Step 6: Final answer
    x = 12,205.20

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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.