Home / 10,821.68-14,933.90-6,105.96

Finding the Fourth Proportional to 10,821.68, 14,933.90 and 6,105.96

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Solution

The fourth proportional to 10,821.68, 14,933.90 and 6,105.96 is: 8,426.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.68 : 14,933.90 = 6,105.96 : x
  2. Step 2: Convert to fraction form
    10,821.68/14,933.90 = 6,105.96/x
  3. Step 3: Cross multiply
    10,821.68x = 14,933.90 × 6,105.96
  4. Step 4: Simplify right side
    10,821.68x = 91,185,765.51
  5. Step 5: Solve for x
    x = 91,185,765.51/10,821.68
  6. Step 6: Final answer
    x = 8,426.22

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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.