Home / 13,608.80-20,406.82-8,062.93

Finding the Fourth Proportional to 13,608.80, 20,406.82 and 8,062.93

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Solution

The fourth proportional to 13,608.80, 20,406.82 and 8,062.93 is: 12,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608.80 : 20,406.82 = 8,062.93 : x
  2. Step 2: Convert to fraction form
    13,608.80/20,406.82 = 8,062.93/x
  3. Step 3: Cross multiply
    13,608.80x = 20,406.82 × 8,062.93
  4. Step 4: Simplify right side
    13,608.80x = 164,538,761.18
  5. Step 5: Solve for x
    x = 164,538,761.18/13,608.80
  6. Step 6: Final answer
    x = 12,090.61

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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.