Home / 11,872.32-17,812.80-5,634.24

Finding the Fourth Proportional to 11,872.32, 17,812.80 and 5,634.24

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Solution

The fourth proportional to 11,872.32, 17,812.80 and 5,634.24 is: 8,453.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.32 : 17,812.80 = 5,634.24 : x
  2. Step 2: Convert to fraction form
    11,872.32/17,812.80 = 5,634.24/x
  3. Step 3: Cross multiply
    11,872.32x = 17,812.80 × 5,634.24
  4. Step 4: Simplify right side
    11,872.32x = 100,361,590.27
  5. Step 5: Solve for x
    x = 100,361,590.27/11,872.32
  6. Step 6: Final answer
    x = 8,453.41

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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.