Home / 10,872.64-16,310.58-3,945.52

Finding the Fourth Proportional to 10,872.64, 16,310.58 and 3,945.52

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Solution

The fourth proportional to 10,872.64, 16,310.58 and 3,945.52 is: 5,918.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.64 : 16,310.58 = 3,945.52 : x
  2. Step 2: Convert to fraction form
    10,872.64/16,310.58 = 3,945.52/x
  3. Step 3: Cross multiply
    10,872.64x = 16,310.58 × 3,945.52
  4. Step 4: Simplify right side
    10,872.64x = 64,353,719.60
  5. Step 5: Solve for x
    x = 64,353,719.60/10,872.64
  6. Step 6: Final answer
    x = 5,918.87

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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.