Home / 8,121.24-12,176.40-2,926.44

Finding the Fourth Proportional to 8,121.24, 12,176.40 and 2,926.44

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Solution

The fourth proportional to 8,121.24, 12,176.40 and 2,926.44 is: 4,387.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.24 : 12,176.40 = 2,926.44 : x
  2. Step 2: Convert to fraction form
    8,121.24/12,176.40 = 2,926.44/x
  3. Step 3: Cross multiply
    8,121.24x = 12,176.40 × 2,926.44
  4. Step 4: Simplify right side
    8,121.24x = 35,633,504.02
  5. Step 5: Solve for x
    x = 35,633,504.02/8,121.24
  6. Step 6: Final answer
    x = 4,387.69

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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.