Home / 18,764.73-28,115.85-13,206.41

Finding the Fourth Proportional to 18,764.73, 28,115.85 and 13,206.41

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Solution

The fourth proportional to 18,764.73, 28,115.85 and 13,206.41 is: 19,787.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.73 : 28,115.85 = 13,206.41 : x
  2. Step 2: Convert to fraction form
    18,764.73/28,115.85 = 13,206.41/x
  3. Step 3: Cross multiply
    18,764.73x = 28,115.85 × 13,206.41
  4. Step 4: Simplify right side
    18,764.73x = 371,309,302.02
  5. Step 5: Solve for x
    x = 371,309,302.02/18,764.73
  6. Step 6: Final answer
    x = 19,787.62

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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.