Home / 11,945.76-17,919.04-9,176.64

Finding the Fourth Proportional to 11,945.76, 17,919.04 and 9,176.64

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Solution

The fourth proportional to 11,945.76, 17,919.04 and 9,176.64 is: 13,765.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.76 : 17,919.04 = 9,176.64 : x
  2. Step 2: Convert to fraction form
    11,945.76/17,919.04 = 9,176.64/x
  3. Step 3: Cross multiply
    11,945.76x = 17,919.04 × 9,176.64
  4. Step 4: Simplify right side
    11,945.76x = 164,436,579.23
  5. Step 5: Solve for x
    x = 164,436,579.23/11,945.76
  6. Step 6: Final answer
    x = 13,765.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.