Home / 18,252.12-27,380.96-7,722.15

Finding the Fourth Proportional to 18,252.12, 27,380.96 and 7,722.15

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Solution

The fourth proportional to 18,252.12, 27,380.96 and 7,722.15 is: 11,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,252.12 : 27,380.96 = 7,722.15 : x
  2. Step 2: Convert to fraction form
    18,252.12/27,380.96 = 7,722.15/x
  3. Step 3: Cross multiply
    18,252.12x = 27,380.96 × 7,722.15
  4. Step 4: Simplify right side
    18,252.12x = 211,439,841.65
  5. Step 5: Solve for x
    x = 211,439,841.65/18,252.12
  6. Step 6: Final answer
    x = 11,584.40

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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.