Home / 11,208.30-16,812.45-3,821.10

Finding the Fourth Proportional to 11,208.30, 16,812.45 and 3,821.10

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Solution

The fourth proportional to 11,208.30, 16,812.45 and 3,821.10 is: 5,731.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.30 : 16,812.45 = 3,821.10 : x
  2. Step 2: Convert to fraction form
    11,208.30/16,812.45 = 3,821.10/x
  3. Step 3: Cross multiply
    11,208.30x = 16,812.45 × 3,821.10
  4. Step 4: Simplify right side
    11,208.30x = 64,242,052.70
  5. Step 5: Solve for x
    x = 64,242,052.70/11,208.30
  6. Step 6: Final answer
    x = 5,731.65

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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.