Home / 8,180.44-11,288.62-4,643.56

Finding the Fourth Proportional to 8,180.44, 11,288.62 and 4,643.56

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Solution

The fourth proportional to 8,180.44, 11,288.62 and 4,643.56 is: 6,407.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.44 : 11,288.62 = 4,643.56 : x
  2. Step 2: Convert to fraction form
    8,180.44/11,288.62 = 4,643.56/x
  3. Step 3: Cross multiply
    8,180.44x = 11,288.62 × 4,643.56
  4. Step 4: Simplify right side
    8,180.44x = 52,419,384.29
  5. Step 5: Solve for x
    x = 52,419,384.29/8,180.44
  6. Step 6: Final answer
    x = 6,407.89

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Half scale
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1.5x scale

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.