Home / 12,448.80-17,183.74-11,120.19

Finding the Fourth Proportional to 12,448.80, 17,183.74 and 11,120.19

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Solution

The fourth proportional to 12,448.80, 17,183.74 and 11,120.19 is: 15,349.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.80 : 17,183.74 = 11,120.19 : x
  2. Step 2: Convert to fraction form
    12,448.80/17,183.74 = 11,120.19/x
  3. Step 3: Cross multiply
    12,448.80x = 17,183.74 × 11,120.19
  4. Step 4: Simplify right side
    12,448.80x = 191,086,453.71
  5. Step 5: Solve for x
    x = 191,086,453.71/12,448.80
  6. Step 6: Final answer
    x = 15,349.80

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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.