Home / 7,823.12-11,734.68-3,209.36

Finding the Fourth Proportional to 7,823.12, 11,734.68 and 3,209.36

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Solution

The fourth proportional to 7,823.12, 11,734.68 and 3,209.36 is: 4,814.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,823.12 : 11,734.68 = 3,209.36 : x
  2. Step 2: Convert to fraction form
    7,823.12/11,734.68 = 3,209.36/x
  3. Step 3: Cross multiply
    7,823.12x = 11,734.68 × 3,209.36
  4. Step 4: Simplify right side
    7,823.12x = 37,660,812.60
  5. Step 5: Solve for x
    x = 37,660,812.60/7,823.12
  6. Step 6: Final answer
    x = 4,814.04

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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.