Home / 13,209.05-19,815.80-4,441.88

Finding the Fourth Proportional to 13,209.05, 19,815.80 and 4,441.88

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Solution

The fourth proportional to 13,209.05, 19,815.80 and 4,441.88 is: 6,663.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.05 : 19,815.80 = 4,441.88 : x
  2. Step 2: Convert to fraction form
    13,209.05/19,815.80 = 4,441.88/x
  3. Step 3: Cross multiply
    13,209.05x = 19,815.80 × 4,441.88
  4. Step 4: Simplify right side
    13,209.05x = 88,019,284.42
  5. Step 5: Solve for x
    x = 88,019,284.42/13,209.05
  6. Step 6: Final answer
    x = 6,663.56

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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.