Home / 5,511.70-8,267.55-5,438.80

Finding the Fourth Proportional to 5,511.70, 8,267.55 and 5,438.80

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Solution

The fourth proportional to 5,511.70, 8,267.55 and 5,438.80 is: 8,158.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,511.70 : 8,267.55 = 5,438.80 : x
  2. Step 2: Convert to fraction form
    5,511.70/8,267.55 = 5,438.80/x
  3. Step 3: Cross multiply
    5,511.70x = 8,267.55 × 5,438.80
  4. Step 4: Simplify right side
    5,511.70x = 44,965,550.94
  5. Step 5: Solve for x
    x = 44,965,550.94/5,511.70
  6. Step 6: Final answer
    x = 8,158.20

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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.