Home / 10,712.13-16,078.58-5,169.37

Finding the Fourth Proportional to 10,712.13, 16,078.58 and 5,169.37

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Solution

The fourth proportional to 10,712.13, 16,078.58 and 5,169.37 is: 7,759.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.13 : 16,078.58 = 5,169.37 : x
  2. Step 2: Convert to fraction form
    10,712.13/16,078.58 = 5,169.37/x
  3. Step 3: Cross multiply
    10,712.13x = 16,078.58 × 5,169.37
  4. Step 4: Simplify right side
    10,712.13x = 83,116,022.85
  5. Step 5: Solve for x
    x = 83,116,022.85/10,712.13
  6. Step 6: Final answer
    x = 7,759.06

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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.