Home / 11,671.91-17,504.61-3,880.79

Finding the Fourth Proportional to 11,671.91, 17,504.61 and 3,880.79

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Solution

The fourth proportional to 11,671.91, 17,504.61 and 3,880.79 is: 5,820.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,671.91 : 17,504.61 = 3,880.79 : x
  2. Step 2: Convert to fraction form
    11,671.91/17,504.61 = 3,880.79/x
  3. Step 3: Cross multiply
    11,671.91x = 17,504.61 × 3,880.79
  4. Step 4: Simplify right side
    11,671.91x = 67,931,715.44
  5. Step 5: Solve for x
    x = 67,931,715.44/11,671.91
  6. Step 6: Final answer
    x = 5,820.10

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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.