Home / 8,215.74-12,324.45-3,284.70

Finding the Fourth Proportional to 8,215.74, 12,324.45 and 3,284.70

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Solution

The fourth proportional to 8,215.74, 12,324.45 and 3,284.70 is: 4,927.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.74 : 12,324.45 = 3,284.70 : x
  2. Step 2: Convert to fraction form
    8,215.74/12,324.45 = 3,284.70/x
  3. Step 3: Cross multiply
    8,215.74x = 12,324.45 × 3,284.70
  4. Step 4: Simplify right side
    8,215.74x = 40,482,120.92
  5. Step 5: Solve for x
    x = 40,482,120.92/8,215.74
  6. Step 6: Final answer
    x = 4,927.39

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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.