Home / 8,142.03-12,215.99-3,208.93

Finding the Fourth Proportional to 8,142.03, 12,215.99 and 3,208.93

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Solution

The fourth proportional to 8,142.03, 12,215.99 and 3,208.93 is: 4,814.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.03 : 12,215.99 = 3,208.93 : x
  2. Step 2: Convert to fraction form
    8,142.03/12,215.99 = 3,208.93/x
  3. Step 3: Cross multiply
    8,142.03x = 12,215.99 × 3,208.93
  4. Step 4: Simplify right side
    8,142.03x = 39,200,256.79
  5. Step 5: Solve for x
    x = 39,200,256.79/8,142.03
  6. Step 6: Final answer
    x = 4,814.56

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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.