Home / 9,311.12-12,847.92-5,331.44

Finding the Fourth Proportional to 9,311.12, 12,847.92 and 5,331.44

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Solution

The fourth proportional to 9,311.12, 12,847.92 and 5,331.44 is: 7,356.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,311.12 : 12,847.92 = 5,331.44 : x
  2. Step 2: Convert to fraction form
    9,311.12/12,847.92 = 5,331.44/x
  3. Step 3: Cross multiply
    9,311.12x = 12,847.92 × 5,331.44
  4. Step 4: Simplify right side
    9,311.12x = 68,497,914.60
  5. Step 5: Solve for x
    x = 68,497,914.60/9,311.12
  6. Step 6: Final answer
    x = 7,356.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.