Home / 11,891.25-17,847.72-4,876.20

Finding the Fourth Proportional to 11,891.25, 17,847.72 and 4,876.20

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Solution

The fourth proportional to 11,891.25, 17,847.72 and 4,876.20 is: 7,318.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,891.25 : 17,847.72 = 4,876.20 : x
  2. Step 2: Convert to fraction form
    11,891.25/17,847.72 = 4,876.20/x
  3. Step 3: Cross multiply
    11,891.25x = 17,847.72 × 4,876.20
  4. Step 4: Simplify right side
    11,891.25x = 87,029,052.26
  5. Step 5: Solve for x
    x = 87,029,052.26/11,891.25
  6. Step 6: Final answer
    x = 7,318.75

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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.