Home / 8,142.04-12,204.75-3,209.68

Finding the Fourth Proportional to 8,142.04, 12,204.75 and 3,209.68

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Solution

The fourth proportional to 8,142.04, 12,204.75 and 3,209.68 is: 4,811.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142.04 : 12,204.75 = 3,209.68 : x
  2. Step 2: Convert to fraction form
    8,142.04/12,204.75 = 3,209.68/x
  3. Step 3: Cross multiply
    8,142.04x = 12,204.75 × 3,209.68
  4. Step 4: Simplify right side
    8,142.04x = 39,173,280.96
  5. Step 5: Solve for x
    x = 39,173,280.96/8,142.04
  6. Step 6: Final answer
    x = 4,811.24

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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.