Home / 8,206.79-12,308.98-2,660.62

Finding the Fourth Proportional to 8,206.79, 12,308.98 and 2,660.62

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Solution

The fourth proportional to 8,206.79, 12,308.98 and 2,660.62 is: 3,990.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,206.79 : 12,308.98 = 2,660.62 : x
  2. Step 2: Convert to fraction form
    8,206.79/12,308.98 = 2,660.62/x
  3. Step 3: Cross multiply
    8,206.79x = 12,308.98 × 2,660.62
  4. Step 4: Simplify right side
    8,206.79x = 32,749,518.37
  5. Step 5: Solve for x
    x = 32,749,518.37/8,206.79
  6. Step 6: Final answer
    x = 3,990.54

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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.