Home / 8,156.70-12,235.92-2,608.74

Finding the Fourth Proportional to 8,156.70, 12,235.92 and 2,608.74

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Solution

The fourth proportional to 8,156.70, 12,235.92 and 2,608.74 is: 3,913.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.70 : 12,235.92 = 2,608.74 : x
  2. Step 2: Convert to fraction form
    8,156.70/12,235.92 = 2,608.74/x
  3. Step 3: Cross multiply
    8,156.70x = 12,235.92 × 2,608.74
  4. Step 4: Simplify right side
    8,156.70x = 31,920,333.94
  5. Step 5: Solve for x
    x = 31,920,333.94/8,156.70
  6. Step 6: Final answer
    x = 3,913.39

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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.