Home / 8,021.20-11,069.82-4,619.24

Finding the Fourth Proportional to 8,021.20, 11,069.82 and 4,619.24

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Solution

The fourth proportional to 8,021.20, 11,069.82 and 4,619.24 is: 6,374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,021.20 : 11,069.82 = 4,619.24 : x
  2. Step 2: Convert to fraction form
    8,021.20/11,069.82 = 4,619.24/x
  3. Step 3: Cross multiply
    8,021.20x = 11,069.82 × 4,619.24
  4. Step 4: Simplify right side
    8,021.20x = 51,134,155.34
  5. Step 5: Solve for x
    x = 51,134,155.34/8,021.20
  6. Step 6: Final answer
    x = 6,374.88

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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.