Home / 13,229.22-19,845-4,909.33

Finding the Fourth Proportional to 13,229.22, 19,845 and 4,909.33

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Solution

The fourth proportional to 13,229.22, 19,845 and 4,909.33 is: 7,364.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.22 : 19,845 = 4,909.33 : x
  2. Step 2: Convert to fraction form
    13,229.22/19,845 = 4,909.33/x
  3. Step 3: Cross multiply
    13,229.22x = 19,845 × 4,909.33
  4. Step 4: Simplify right side
    13,229.22x = 97,425,653.85
  5. Step 5: Solve for x
    x = 97,425,653.85/13,229.22
  6. Step 6: Final answer
    x = 7,364.43

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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.