Home / 13,584.18-20,377.79-12,188.94

Finding the Fourth Proportional to 13,584.18, 20,377.79 and 12,188.94

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Solution

The fourth proportional to 13,584.18, 20,377.79 and 12,188.94 is: 18,284.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,584.18 : 20,377.79 = 12,188.94 : x
  2. Step 2: Convert to fraction form
    13,584.18/20,377.79 = 12,188.94/x
  3. Step 3: Cross multiply
    13,584.18x = 20,377.79 × 12,188.94
  4. Step 4: Simplify right side
    13,584.18x = 248,383,659.64
  5. Step 5: Solve for x
    x = 248,383,659.64/13,584.18
  6. Step 6: Final answer
    x = 18,284.77

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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.