Home / 8,276.58-12,415.21-3,890.97

Finding the Fourth Proportional to 8,276.58, 12,415.21 and 3,890.97

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Solution

The fourth proportional to 8,276.58, 12,415.21 and 3,890.97 is: 5,836.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,276.58 : 12,415.21 = 3,890.97 : x
  2. Step 2: Convert to fraction form
    8,276.58/12,415.21 = 3,890.97/x
  3. Step 3: Cross multiply
    8,276.58x = 12,415.21 × 3,890.97
  4. Step 4: Simplify right side
    8,276.58x = 48,307,199.93
  5. Step 5: Solve for x
    x = 48,307,199.93/8,276.58
  6. Step 6: Final answer
    x = 5,836.61

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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.