Home / 8,206.78-12,292.71-4,299.34

Finding the Fourth Proportional to 8,206.78, 12,292.71 and 4,299.34

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Solution

The fourth proportional to 8,206.78, 12,292.71 and 4,299.34 is: 6,439.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,206.78 : 12,292.71 = 4,299.34 : x
  2. Step 2: Convert to fraction form
    8,206.78/12,292.71 = 4,299.34/x
  3. Step 3: Cross multiply
    8,206.78x = 12,292.71 × 4,299.34
  4. Step 4: Simplify right side
    8,206.78x = 52,850,539.81
  5. Step 5: Solve for x
    x = 52,850,539.81/8,206.78
  6. Step 6: Final answer
    x = 6,439.86

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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.