Home / 10,216.11-15,323.85-2,821.02

Finding the Fourth Proportional to 10,216.11, 15,323.85 and 2,821.02

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Solution

The fourth proportional to 10,216.11, 15,323.85 and 2,821.02 is: 4,231.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,216.11 : 15,323.85 = 2,821.02 : x
  2. Step 2: Convert to fraction form
    10,216.11/15,323.85 = 2,821.02/x
  3. Step 3: Cross multiply
    10,216.11x = 15,323.85 × 2,821.02
  4. Step 4: Simplify right side
    10,216.11x = 43,228,887.33
  5. Step 5: Solve for x
    x = 43,228,887.33/10,216.11
  6. Step 6: Final answer
    x = 4,231.44

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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.