Home / 8,211.20-11,331-4,674.44

Finding the Fourth Proportional to 8,211.20, 11,331 and 4,674.44

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Solution

The fourth proportional to 8,211.20, 11,331 and 4,674.44 is: 6,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.20 : 11,331 = 4,674.44 : x
  2. Step 2: Convert to fraction form
    8,211.20/11,331 = 4,674.44/x
  3. Step 3: Cross multiply
    8,211.20x = 11,331 × 4,674.44
  4. Step 4: Simplify right side
    8,211.20x = 52,966,079.64
  5. Step 5: Solve for x
    x = 52,966,079.64/8,211.20
  6. Step 6: Final answer
    x = 6,450.47

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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.