Home / 19,229.40-28,847.07-8,136.15

Finding the Fourth Proportional to 19,229.40, 28,847.07 and 8,136.15

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Solution

The fourth proportional to 19,229.40, 28,847.07 and 8,136.15 is: 12,205.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,229.40 : 28,847.07 = 8,136.15 : x
  2. Step 2: Convert to fraction form
    19,229.40/28,847.07 = 8,136.15/x
  3. Step 3: Cross multiply
    19,229.40x = 28,847.07 × 8,136.15
  4. Step 4: Simplify right side
    19,229.40x = 234,704,088.58
  5. Step 5: Solve for x
    x = 234,704,088.58/19,229.40
  6. Step 6: Final answer
    x = 12,205.48

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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.