Home / 13,608.51-20,407.22-4,245.38

Finding the Fourth Proportional to 13,608.51, 20,407.22 and 4,245.38

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Solution

The fourth proportional to 13,608.51, 20,407.22 and 4,245.38 is: 6,366.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.51 : 20,407.22 = 4,245.38 : x
  2. Step 2: Convert to fraction form
    13,608.51/20,407.22 = 4,245.38/x
  3. Step 3: Cross multiply
    13,608.51x = 20,407.22 × 4,245.38
  4. Step 4: Simplify right side
    13,608.51x = 86,636,403.64
  5. Step 5: Solve for x
    x = 86,636,403.64/13,608.51
  6. Step 6: Final answer
    x = 6,366.34

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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.