Home / 8,104.69-12,158.67-3,106.70

Finding the Fourth Proportional to 8,104.69, 12,158.67 and 3,106.70

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Solution

The fourth proportional to 8,104.69, 12,158.67 and 3,106.70 is: 4,660.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.69 : 12,158.67 = 3,106.70 : x
  2. Step 2: Convert to fraction form
    8,104.69/12,158.67 = 3,106.70/x
  3. Step 3: Cross multiply
    8,104.69x = 12,158.67 × 3,106.70
  4. Step 4: Simplify right side
    8,104.69x = 37,773,340.09
  5. Step 5: Solve for x
    x = 37,773,340.09/8,104.69
  6. Step 6: Final answer
    x = 4,660.68

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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.