Home / 18,716.30-28,059.55-10,809.82

Finding the Fourth Proportional to 18,716.30, 28,059.55 and 10,809.82

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Solution

The fourth proportional to 18,716.30, 28,059.55 and 10,809.82 is: 16,206.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716.30 : 28,059.55 = 10,809.82 : x
  2. Step 2: Convert to fraction form
    18,716.30/28,059.55 = 10,809.82/x
  3. Step 3: Cross multiply
    18,716.30x = 28,059.55 × 10,809.82
  4. Step 4: Simplify right side
    18,716.30x = 303,318,684.78
  5. Step 5: Solve for x
    x = 303,318,684.78/18,716.30
  6. Step 6: Final answer
    x = 16,206.12

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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.