Home / 13,248.54-19,872.73-3,387.80

Finding the Fourth Proportional to 13,248.54, 19,872.73 and 3,387.80

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Solution

The fourth proportional to 13,248.54, 19,872.73 and 3,387.80 is: 5,081.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.54 : 19,872.73 = 3,387.80 : x
  2. Step 2: Convert to fraction form
    13,248.54/19,872.73 = 3,387.80/x
  3. Step 3: Cross multiply
    13,248.54x = 19,872.73 × 3,387.80
  4. Step 4: Simplify right side
    13,248.54x = 67,324,834.69
  5. Step 5: Solve for x
    x = 67,324,834.69/13,248.54
  6. Step 6: Final answer
    x = 5,081.68

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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.