Home / 18,890.26-28,338.64-5,743.96

Finding the Fourth Proportional to 18,890.26, 28,338.64 and 5,743.96

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Solution

The fourth proportional to 18,890.26, 28,338.64 and 5,743.96 is: 8,616.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.26 : 28,338.64 = 5,743.96 : x
  2. Step 2: Convert to fraction form
    18,890.26/28,338.64 = 5,743.96/x
  3. Step 3: Cross multiply
    18,890.26x = 28,338.64 × 5,743.96
  4. Step 4: Simplify right side
    18,890.26x = 162,776,014.61
  5. Step 5: Solve for x
    x = 162,776,014.61/18,890.26
  6. Step 6: Final answer
    x = 8,616.93

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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.