Home / 13,571.67-18,729.09-8,853.24

Finding the Fourth Proportional to 13,571.67, 18,729.09 and 8,853.24

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Solution

The fourth proportional to 13,571.67, 18,729.09 and 8,853.24 is: 12,217.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.67 : 18,729.09 = 8,853.24 : x
  2. Step 2: Convert to fraction form
    13,571.67/18,729.09 = 8,853.24/x
  3. Step 3: Cross multiply
    13,571.67x = 18,729.09 × 8,853.24
  4. Step 4: Simplify right side
    13,571.67x = 165,813,128.75
  5. Step 5: Solve for x
    x = 165,813,128.75/13,571.67
  6. Step 6: Final answer
    x = 12,217.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.