Home / 19,286.88-28,930.02-6,139.14

Finding the Fourth Proportional to 19,286.88, 28,930.02 and 6,139.14

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Solution

The fourth proportional to 19,286.88, 28,930.02 and 6,139.14 is: 9,208.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.88 : 28,930.02 = 6,139.14 : x
  2. Step 2: Convert to fraction form
    19,286.88/28,930.02 = 6,139.14/x
  3. Step 3: Cross multiply
    19,286.88x = 28,930.02 × 6,139.14
  4. Step 4: Simplify right side
    19,286.88x = 177,605,442.98
  5. Step 5: Solve for x
    x = 177,605,442.98/19,286.88
  6. Step 6: Final answer
    x = 9,208.61

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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.