Home / 8,921.98-13,382.52-4,238.56

Finding the Fourth Proportional to 8,921.98, 13,382.52 and 4,238.56

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Solution

The fourth proportional to 8,921.98, 13,382.52 and 4,238.56 is: 6,357.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.98 : 13,382.52 = 4,238.56 : x
  2. Step 2: Convert to fraction form
    8,921.98/13,382.52 = 4,238.56/x
  3. Step 3: Cross multiply
    8,921.98x = 13,382.52 × 4,238.56
  4. Step 4: Simplify right side
    8,921.98x = 56,722,613.97
  5. Step 5: Solve for x
    x = 56,722,613.97/8,921.98
  6. Step 6: Final answer
    x = 6,357.63

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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.