Home / 13,199.93-18,208.99-8,162.54

Finding the Fourth Proportional to 13,199.93, 18,208.99 and 8,162.54

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Solution

The fourth proportional to 13,199.93, 18,208.99 and 8,162.54 is: 11,260.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.93 : 18,208.99 = 8,162.54 : x
  2. Step 2: Convert to fraction form
    13,199.93/18,208.99 = 8,162.54/x
  3. Step 3: Cross multiply
    13,199.93x = 18,208.99 × 8,162.54
  4. Step 4: Simplify right side
    13,199.93x = 148,631,609.23
  5. Step 5: Solve for x
    x = 148,631,609.23/13,199.93
  6. Step 6: Final answer
    x = 11,260.03

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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.