Home / 8,921.45-13,382.31-4,241.94

Finding the Fourth Proportional to 8,921.45, 13,382.31 and 4,241.94

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Solution

The fourth proportional to 8,921.45, 13,382.31 and 4,241.94 is: 6,362.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.45 : 13,382.31 = 4,241.94 : x
  2. Step 2: Convert to fraction form
    8,921.45/13,382.31 = 4,241.94/x
  3. Step 3: Cross multiply
    8,921.45x = 13,382.31 × 4,241.94
  4. Step 4: Simplify right side
    8,921.45x = 56,766,956.08
  5. Step 5: Solve for x
    x = 56,766,956.08/8,921.45
  6. Step 6: Final answer
    x = 6,362.97

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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.