Home / 10,821.04-16,231.64-3,425.36

Finding the Fourth Proportional to 10,821.04, 16,231.64 and 3,425.36

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Solution

The fourth proportional to 10,821.04, 16,231.64 and 3,425.36 is: 5,138.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.04 : 16,231.64 = 3,425.36 : x
  2. Step 2: Convert to fraction form
    10,821.04/16,231.64 = 3,425.36/x
  3. Step 3: Cross multiply
    10,821.04x = 16,231.64 × 3,425.36
  4. Step 4: Simplify right side
    10,821.04x = 55,599,210.39
  5. Step 5: Solve for x
    x = 55,599,210.39/10,821.04
  6. Step 6: Final answer
    x = 5,138.07

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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.