Home / 8,207.96-12,309.32-2,660.03

Finding the Fourth Proportional to 8,207.96, 12,309.32 and 2,660.03

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Solution

The fourth proportional to 8,207.96, 12,309.32 and 2,660.03 is: 3,989.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,207.96 : 12,309.32 = 2,660.03 : x
  2. Step 2: Convert to fraction form
    8,207.96/12,309.32 = 2,660.03/x
  3. Step 3: Cross multiply
    8,207.96x = 12,309.32 × 2,660.03
  4. Step 4: Simplify right side
    8,207.96x = 32,743,085.63
  5. Step 5: Solve for x
    x = 32,743,085.63/8,207.96
  6. Step 6: Final answer
    x = 3,989.19

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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.