Home / 13,173.23-18,183.69-8,141.31

Finding the Fourth Proportional to 13,173.23, 18,183.69 and 8,141.31

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Solution

The fourth proportional to 13,173.23, 18,183.69 and 8,141.31 is: 11,237.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.23 : 18,183.69 = 8,141.31 : x
  2. Step 2: Convert to fraction form
    13,173.23/18,183.69 = 8,141.31/x
  3. Step 3: Cross multiply
    13,173.23x = 18,183.69 × 8,141.31
  4. Step 4: Simplify right side
    13,173.23x = 148,039,057.23
  5. Step 5: Solve for x
    x = 148,039,057.23/13,173.23
  6. Step 6: Final answer
    x = 11,237.87

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1.5x scale

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.