Home / 8,142-11,236.58-4,998.80

Finding the Fourth Proportional to 8,142, 11,236.58 and 4,998.80

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Solution

The fourth proportional to 8,142, 11,236.58 and 4,998.80 is: 6,898.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142 : 11,236.58 = 4,998.80 : x
  2. Step 2: Convert to fraction form
    8,142/11,236.58 = 4,998.80/x
  3. Step 3: Cross multiply
    8,142x = 11,236.58 × 4,998.80
  4. Step 4: Simplify right side
    8,142x = 56,169,334.93
  5. Step 5: Solve for x
    x = 56,169,334.93/8,142
  6. Step 6: Final answer
    x = 6,898.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.