Home / 10,286.56-14,195.39-5,811.76

Finding the Fourth Proportional to 10,286.56, 14,195.39 and 5,811.76

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Solution

The fourth proportional to 10,286.56, 14,195.39 and 5,811.76 is: 8,020.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.56 : 14,195.39 = 5,811.76 : x
  2. Step 2: Convert to fraction form
    10,286.56/14,195.39 = 5,811.76/x
  3. Step 3: Cross multiply
    10,286.56x = 14,195.39 × 5,811.76
  4. Step 4: Simplify right side
    10,286.56x = 82,500,199.79
  5. Step 5: Solve for x
    x = 82,500,199.79/10,286.56
  6. Step 6: Final answer
    x = 8,020.19

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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.