Home / 8,471.25-11,690.30-4,694.42

Finding the Fourth Proportional to 8,471.25, 11,690.30 and 4,694.42

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Solution

The fourth proportional to 8,471.25, 11,690.30 and 4,694.42 is: 6,478.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,471.25 : 11,690.30 = 4,694.42 : x
  2. Step 2: Convert to fraction form
    8,471.25/11,690.30 = 4,694.42/x
  3. Step 3: Cross multiply
    8,471.25x = 11,690.30 × 4,694.42
  4. Step 4: Simplify right side
    8,471.25x = 54,879,219.09
  5. Step 5: Solve for x
    x = 54,879,219.09/8,471.25
  6. Step 6: Final answer
    x = 6,478.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.