Home / 13,380.75-20,071.12-5,584.09

Finding the Fourth Proportional to 13,380.75, 20,071.12 and 5,584.09

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Solution

The fourth proportional to 13,380.75, 20,071.12 and 5,584.09 is: 8,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,380.75 : 20,071.12 = 5,584.09 : x
  2. Step 2: Convert to fraction form
    13,380.75/20,071.12 = 5,584.09/x
  3. Step 3: Cross multiply
    13,380.75x = 20,071.12 × 5,584.09
  4. Step 4: Simplify right side
    13,380.75x = 112,078,940.48
  5. Step 5: Solve for x
    x = 112,078,940.48/13,380.75
  6. Step 6: Final answer
    x = 8,376.13

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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.