Home / 12,782.79-19,166.61-4,982.49

Finding the Fourth Proportional to 12,782.79, 19,166.61 and 4,982.49

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Solution

The fourth proportional to 12,782.79, 19,166.61 and 4,982.49 is: 7,470.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782.79 : 19,166.61 = 4,982.49 : x
  2. Step 2: Convert to fraction form
    12,782.79/19,166.61 = 4,982.49/x
  3. Step 3: Cross multiply
    12,782.79x = 19,166.61 × 4,982.49
  4. Step 4: Simplify right side
    12,782.79x = 95,497,442.66
  5. Step 5: Solve for x
    x = 95,497,442.66/12,782.79
  6. Step 6: Final answer
    x = 7,470.78

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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.