Home / 13,021.86-19,530.66-3,662.52

Finding the Fourth Proportional to 13,021.86, 19,530.66 and 3,662.52

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Solution

The fourth proportional to 13,021.86, 19,530.66 and 3,662.52 is: 5,493.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.86 : 19,530.66 = 3,662.52 : x
  2. Step 2: Convert to fraction form
    13,021.86/19,530.66 = 3,662.52/x
  3. Step 3: Cross multiply
    13,021.86x = 19,530.66 × 3,662.52
  4. Step 4: Simplify right side
    13,021.86x = 71,531,432.86
  5. Step 5: Solve for x
    x = 71,531,432.86/13,021.86
  6. Step 6: Final answer
    x = 5,493.18

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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.