Home / 10,821.88-16,222.96-3,798.08

Finding the Fourth Proportional to 10,821.88, 16,222.96 and 3,798.08

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Solution

The fourth proportional to 10,821.88, 16,222.96 and 3,798.08 is: 5,693.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.88 : 16,222.96 = 3,798.08 : x
  2. Step 2: Convert to fraction form
    10,821.88/16,222.96 = 3,798.08/x
  3. Step 3: Cross multiply
    10,821.88x = 16,222.96 × 3,798.08
  4. Step 4: Simplify right side
    10,821.88x = 61,616,099.92
  5. Step 5: Solve for x
    x = 61,616,099.92/10,821.88
  6. Step 6: Final answer
    x = 5,693.66

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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.