Home / 11,780.27-17,670.39-3,015.19

Finding the Fourth Proportional to 11,780.27, 17,670.39 and 3,015.19

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Solution

The fourth proportional to 11,780.27, 17,670.39 and 3,015.19 is: 4,522.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.27 : 17,670.39 = 3,015.19 : x
  2. Step 2: Convert to fraction form
    11,780.27/17,670.39 = 3,015.19/x
  3. Step 3: Cross multiply
    11,780.27x = 17,670.39 × 3,015.19
  4. Step 4: Simplify right side
    11,780.27x = 53,279,583.22
  5. Step 5: Solve for x
    x = 53,279,583.22/11,780.27
  6. Step 6: Final answer
    x = 4,522.78

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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.