Home / 8,591.10-12,884.85-4,211.70

Finding the Fourth Proportional to 8,591.10, 12,884.85 and 4,211.70

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Solution

The fourth proportional to 8,591.10, 12,884.85 and 4,211.70 is: 6,316.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,591.10 : 12,884.85 = 4,211.70 : x
  2. Step 2: Convert to fraction form
    8,591.10/12,884.85 = 4,211.70/x
  3. Step 3: Cross multiply
    8,591.10x = 12,884.85 × 4,211.70
  4. Step 4: Simplify right side
    8,591.10x = 54,267,122.75
  5. Step 5: Solve for x
    x = 54,267,122.75/8,591.10
  6. Step 6: Final answer
    x = 6,316.67

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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.