Home / 13,220.98-19,832.22-5,324.09

Finding the Fourth Proportional to 13,220.98, 19,832.22 and 5,324.09

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Solution

The fourth proportional to 13,220.98, 19,832.22 and 5,324.09 is: 7,986.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.98 : 19,832.22 = 5,324.09 : x
  2. Step 2: Convert to fraction form
    13,220.98/19,832.22 = 5,324.09/x
  3. Step 3: Cross multiply
    13,220.98x = 19,832.22 × 5,324.09
  4. Step 4: Simplify right side
    13,220.98x = 105,588,425.02
  5. Step 5: Solve for x
    x = 105,588,425.02/13,220.98
  6. Step 6: Final answer
    x = 7,986.43

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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.