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Finding the Fourth Proportional to 8,604.61, 12,902.95 and 3,406.93

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Solution

The fourth proportional to 8,604.61, 12,902.95 and 3,406.93 is: 5,108.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,604.61 : 12,902.95 = 3,406.93 : x
  2. Step 2: Convert to fraction form
    8,604.61/12,902.95 = 3,406.93/x
  3. Step 3: Cross multiply
    8,604.61x = 12,902.95 × 3,406.93
  4. Step 4: Simplify right side
    8,604.61x = 43,959,447.44
  5. Step 5: Solve for x
    x = 43,959,447.44/8,604.61
  6. Step 6: Final answer
    x = 5,108.83

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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.