Home / 8,306.78-12,461.74-2,685.95

Finding the Fourth Proportional to 8,306.78, 12,461.74 and 2,685.95

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Solution

The fourth proportional to 8,306.78, 12,461.74 and 2,685.95 is: 4,029.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,306.78 : 12,461.74 = 2,685.95 : x
  2. Step 2: Convert to fraction form
    8,306.78/12,461.74 = 2,685.95/x
  3. Step 3: Cross multiply
    8,306.78x = 12,461.74 × 2,685.95
  4. Step 4: Simplify right side
    8,306.78x = 33,471,658.36
  5. Step 5: Solve for x
    x = 33,471,658.36/8,306.78
  6. Step 6: Final answer
    x = 4,029.44

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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.