Home / 11,235.20-16,852.80-3,839.72

Finding the Fourth Proportional to 11,235.20, 16,852.80 and 3,839.72

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Solution

The fourth proportional to 11,235.20, 16,852.80 and 3,839.72 is: 5,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,235.20 : 16,852.80 = 3,839.72 : x
  2. Step 2: Convert to fraction form
    11,235.20/16,852.80 = 3,839.72/x
  3. Step 3: Cross multiply
    11,235.20x = 16,852.80 × 3,839.72
  4. Step 4: Simplify right side
    11,235.20x = 64,709,948.95
  5. Step 5: Solve for x
    x = 64,709,948.95/11,235.20
  6. Step 6: Final answer
    x = 5,759.58

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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.