Home / 12,183.09-18,274.65-4,291.46

Finding the Fourth Proportional to 12,183.09, 18,274.65 and 4,291.46

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Solution

The fourth proportional to 12,183.09, 18,274.65 and 4,291.46 is: 6,437.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.09 : 18,274.65 = 4,291.46 : x
  2. Step 2: Convert to fraction form
    12,183.09/18,274.65 = 4,291.46/x
  3. Step 3: Cross multiply
    12,183.09x = 18,274.65 × 4,291.46
  4. Step 4: Simplify right side
    12,183.09x = 78,424,816.66
  5. Step 5: Solve for x
    x = 78,424,816.66/12,183.09
  6. Step 6: Final answer
    x = 6,437.19

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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.