Home / 15,633.26-21,571.97-12,454.64

Finding the Fourth Proportional to 15,633.26, 21,571.97 and 12,454.64

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Solution

The fourth proportional to 15,633.26, 21,571.97 and 12,454.64 is: 17,185.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,633.26 : 21,571.97 = 12,454.64 : x
  2. Step 2: Convert to fraction form
    15,633.26/21,571.97 = 12,454.64/x
  3. Step 3: Cross multiply
    15,633.26x = 21,571.97 × 12,454.64
  4. Step 4: Simplify right side
    15,633.26x = 268,671,120.44
  5. Step 5: Solve for x
    x = 268,671,120.44/15,633.26
  6. Step 6: Final answer
    x = 17,185.87

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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.