Home / 11,318.10-16,982.28-4,745.76

Finding the Fourth Proportional to 11,318.10, 16,982.28 and 4,745.76

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Solution

The fourth proportional to 11,318.10, 16,982.28 and 4,745.76 is: 7,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.10 : 16,982.28 = 4,745.76 : x
  2. Step 2: Convert to fraction form
    11,318.10/16,982.28 = 4,745.76/x
  3. Step 3: Cross multiply
    11,318.10x = 16,982.28 × 4,745.76
  4. Step 4: Simplify right side
    11,318.10x = 80,593,825.13
  5. Step 5: Solve for x
    x = 80,593,825.13/11,318.10
  6. Step 6: Final answer
    x = 7,120.79

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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.