Home / 12,448.55-17,183.40-11,119.94

Finding the Fourth Proportional to 12,448.55, 17,183.40 and 11,119.94

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Solution

The fourth proportional to 12,448.55, 17,183.40 and 11,119.94 is: 15,349.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.55 : 17,183.40 = 11,119.94 : x
  2. Step 2: Convert to fraction form
    12,448.55/17,183.40 = 11,119.94/x
  3. Step 3: Cross multiply
    12,448.55x = 17,183.40 × 11,119.94
  4. Step 4: Simplify right side
    12,448.55x = 191,078,321.40
  5. Step 5: Solve for x
    x = 191,078,321.40/12,448.55
  6. Step 6: Final answer
    x = 15,349.45

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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.