Home / 11,984.12-18,040.90-10,778.54

Finding the Fourth Proportional to 11,984.12, 18,040.90 and 10,778.54

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Solution

The fourth proportional to 11,984.12, 18,040.90 and 10,778.54 is: 16,226.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,984.12 : 18,040.90 = 10,778.54 : x
  2. Step 2: Convert to fraction form
    11,984.12/18,040.90 = 10,778.54/x
  3. Step 3: Cross multiply
    11,984.12x = 18,040.90 × 10,778.54
  4. Step 4: Simplify right side
    11,984.12x = 194,454,562.29
  5. Step 5: Solve for x
    x = 194,454,562.29/11,984.12
  6. Step 6: Final answer
    x = 16,226.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.