Home / 9,213.30-13,815.05-3,663.78

Finding the Fourth Proportional to 9,213.30, 13,815.05 and 3,663.78

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Solution

The fourth proportional to 9,213.30, 13,815.05 and 3,663.78 is: 5,493.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,213.30 : 13,815.05 = 3,663.78 : x
  2. Step 2: Convert to fraction form
    9,213.30/13,815.05 = 3,663.78/x
  3. Step 3: Cross multiply
    9,213.30x = 13,815.05 × 3,663.78
  4. Step 4: Simplify right side
    9,213.30x = 50,615,285.57
  5. Step 5: Solve for x
    x = 50,615,285.57/9,213.30
  6. Step 6: Final answer
    x = 5,493.72

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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.