Home / 11,983.62-18,040.14-10,778.03

Finding the Fourth Proportional to 11,983.62, 18,040.14 and 10,778.03

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Solution

The fourth proportional to 11,983.62, 18,040.14 and 10,778.03 is: 16,225.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.62 : 18,040.14 = 10,778.03 : x
  2. Step 2: Convert to fraction form
    11,983.62/18,040.14 = 10,778.03/x
  3. Step 3: Cross multiply
    11,983.62x = 18,040.14 × 10,778.03
  4. Step 4: Simplify right side
    11,983.62x = 194,437,170.12
  5. Step 5: Solve for x
    x = 194,437,170.12/11,983.62
  6. Step 6: Final answer
    x = 16,225.24

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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.