Home / 8,861.62-13,280.91-3,923.86

Finding the Fourth Proportional to 8,861.62, 13,280.91 and 3,923.86

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Solution

The fourth proportional to 8,861.62, 13,280.91 and 3,923.86 is: 5,880.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.62 : 13,280.91 = 3,923.86 : x
  2. Step 2: Convert to fraction form
    8,861.62/13,280.91 = 3,923.86/x
  3. Step 3: Cross multiply
    8,861.62x = 13,280.91 × 3,923.86
  4. Step 4: Simplify right side
    8,861.62x = 52,112,431.51
  5. Step 5: Solve for x
    x = 52,112,431.51/8,861.62
  6. Step 6: Final answer
    x = 5,880.69

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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.