Home / 11,945.60-17,840.24-10,171.68

Finding the Fourth Proportional to 11,945.60, 17,840.24 and 10,171.68

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Solution

The fourth proportional to 11,945.60, 17,840.24 and 10,171.68 is: 15,190.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.60 : 17,840.24 = 10,171.68 : x
  2. Step 2: Convert to fraction form
    11,945.60/17,840.24 = 10,171.68/x
  3. Step 3: Cross multiply
    11,945.60x = 17,840.24 × 10,171.68
  4. Step 4: Simplify right side
    11,945.60x = 181,465,212.40
  5. Step 5: Solve for x
    x = 181,465,212.40/11,945.60
  6. Step 6: Final answer
    x = 15,190.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.