Home / 18,799.80-28,198.66-6,318.53

Finding the Fourth Proportional to 18,799.80, 28,198.66 and 6,318.53

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Solution

The fourth proportional to 18,799.80, 28,198.66 and 6,318.53 is: 9,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,799.80 : 28,198.66 = 6,318.53 : x
  2. Step 2: Convert to fraction form
    18,799.80/28,198.66 = 6,318.53/x
  3. Step 3: Cross multiply
    18,799.80x = 28,198.66 × 6,318.53
  4. Step 4: Simplify right side
    18,799.80x = 178,174,133.87
  5. Step 5: Solve for x
    x = 178,174,133.87/18,799.80
  6. Step 6: Final answer
    x = 9,477.45

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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.