Home / 11,873.39-17,811.90-4,080.38

Finding the Fourth Proportional to 11,873.39, 17,811.90 and 4,080.38

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Solution

The fourth proportional to 11,873.39, 17,811.90 and 4,080.38 is: 6,121.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,873.39 : 17,811.90 = 4,080.38 : x
  2. Step 2: Convert to fraction form
    11,873.39/17,811.90 = 4,080.38/x
  3. Step 3: Cross multiply
    11,873.39x = 17,811.90 × 4,080.38
  4. Step 4: Simplify right side
    11,873.39x = 72,679,231.46
  5. Step 5: Solve for x
    x = 72,679,231.46/11,873.39
  6. Step 6: Final answer
    x = 6,121.19

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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.