Home / 10,829.78-16,245.11-3,434.07

Finding the Fourth Proportional to 10,829.78, 16,245.11 and 3,434.07

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Solution

The fourth proportional to 10,829.78, 16,245.11 and 3,434.07 is: 5,151.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,829.78 : 16,245.11 = 3,434.07 : x
  2. Step 2: Convert to fraction form
    10,829.78/16,245.11 = 3,434.07/x
  3. Step 3: Cross multiply
    10,829.78x = 16,245.11 × 3,434.07
  4. Step 4: Simplify right side
    10,829.78x = 55,786,827.73
  5. Step 5: Solve for x
    x = 55,786,827.73/10,829.78
  6. Step 6: Final answer
    x = 5,151.25

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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.