Home / 19,146.47-28,704.22-8,608.78

Finding the Fourth Proportional to 19,146.47, 28,704.22 and 8,608.78

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Solution

The fourth proportional to 19,146.47, 28,704.22 and 8,608.78 is: 12,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.47 : 28,704.22 = 8,608.78 : x
  2. Step 2: Convert to fraction form
    19,146.47/28,704.22 = 8,608.78/x
  3. Step 3: Cross multiply
    19,146.47x = 28,704.22 × 8,608.78
  4. Step 4: Simplify right side
    19,146.47x = 247,108,128.49
  5. Step 5: Solve for x
    x = 247,108,128.49/19,146.47
  6. Step 6: Final answer
    x = 12,906.20

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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.