Home / 11,479.83-17,217.78-3,157.89

Finding the Fourth Proportional to 11,479.83, 17,217.78 and 3,157.89

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Solution

The fourth proportional to 11,479.83, 17,217.78 and 3,157.89 is: 4,736.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,479.83 : 17,217.78 = 3,157.89 : x
  2. Step 2: Convert to fraction form
    11,479.83/17,217.78 = 3,157.89/x
  3. Step 3: Cross multiply
    11,479.83x = 17,217.78 × 3,157.89
  4. Step 4: Simplify right side
    11,479.83x = 54,371,855.28
  5. Step 5: Solve for x
    x = 54,371,855.28/11,479.83
  6. Step 6: Final answer
    x = 4,736.29

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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.