Home / 11,860.15-17,749.11-7,177.33

Finding the Fourth Proportional to 11,860.15, 17,749.11 and 7,177.33

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Solution

The fourth proportional to 11,860.15, 17,749.11 and 7,177.33 is: 10,741.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.15 : 17,749.11 = 7,177.33 : x
  2. Step 2: Convert to fraction form
    11,860.15/17,749.11 = 7,177.33/x
  3. Step 3: Cross multiply
    11,860.15x = 17,749.11 × 7,177.33
  4. Step 4: Simplify right side
    11,860.15x = 127,391,183.79
  5. Step 5: Solve for x
    x = 127,391,183.79/11,860.15
  6. Step 6: Final answer
    x = 10,741.12

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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.