Home / 15,771.94-21,765.26-8,698.37

Finding the Fourth Proportional to 15,771.94, 21,765.26 and 8,698.37

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Solution

The fourth proportional to 15,771.94, 21,765.26 and 8,698.37 is: 12,003.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.94 : 21,765.26 = 8,698.37 : x
  2. Step 2: Convert to fraction form
    15,771.94/21,765.26 = 8,698.37/x
  3. Step 3: Cross multiply
    15,771.94x = 21,765.26 × 8,698.37
  4. Step 4: Simplify right side
    15,771.94x = 189,322,175.80
  5. Step 5: Solve for x
    x = 189,322,175.80/15,771.94
  6. Step 6: Final answer
    x = 12,003.74

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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.