Home / 19,289.83-28,936.88-6,139.14

Finding the Fourth Proportional to 19,289.83, 28,936.88 and 6,139.14

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Solution

The fourth proportional to 19,289.83, 28,936.88 and 6,139.14 is: 9,209.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,289.83 : 28,936.88 = 6,139.14 : x
  2. Step 2: Convert to fraction form
    19,289.83/28,936.88 = 6,139.14/x
  3. Step 3: Cross multiply
    19,289.83x = 28,936.88 × 6,139.14
  4. Step 4: Simplify right side
    19,289.83x = 177,647,526.79
  5. Step 5: Solve for x
    x = 177,647,526.79/19,289.83
  6. Step 6: Final answer
    x = 9,209.39

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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.