Home / 15,523.82-21,422.84-8,450.22

Finding the Fourth Proportional to 15,523.82, 21,422.84 and 8,450.22

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Solution

The fourth proportional to 15,523.82, 21,422.84 and 8,450.22 is: 11,661.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.82 : 21,422.84 = 8,450.22 : x
  2. Step 2: Convert to fraction form
    15,523.82/21,422.84 = 8,450.22/x
  3. Step 3: Cross multiply
    15,523.82x = 21,422.84 × 8,450.22
  4. Step 4: Simplify right side
    15,523.82x = 181,027,668.77
  5. Step 5: Solve for x
    x = 181,027,668.77/15,523.82
  6. Step 6: Final answer
    x = 11,661.29

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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.