Home / 19,184.50-28,789.80-6,872.50

Finding the Fourth Proportional to 19,184.50, 28,789.80 and 6,872.50

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Solution

The fourth proportional to 19,184.50, 28,789.80 and 6,872.50 is: 10,313.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184.50 : 28,789.80 = 6,872.50 : x
  2. Step 2: Convert to fraction form
    19,184.50/28,789.80 = 6,872.50/x
  3. Step 3: Cross multiply
    19,184.50x = 28,789.80 × 6,872.50
  4. Step 4: Simplify right side
    19,184.50x = 197,857,900.50
  5. Step 5: Solve for x
    x = 197,857,900.50/19,184.50
  6. Step 6: Final answer
    x = 10,313.42

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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.