Home / 8,180.29-12,260.85-3,788.47

Finding the Fourth Proportional to 8,180.29, 12,260.85 and 3,788.47

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Solution

The fourth proportional to 8,180.29, 12,260.85 and 3,788.47 is: 5,678.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180.29 : 12,260.85 = 3,788.47 : x
  2. Step 2: Convert to fraction form
    8,180.29/12,260.85 = 3,788.47/x
  3. Step 3: Cross multiply
    8,180.29x = 12,260.85 × 3,788.47
  4. Step 4: Simplify right side
    8,180.29x = 46,449,862.40
  5. Step 5: Solve for x
    x = 46,449,862.40/8,180.29
  6. Step 6: Final answer
    x = 5,678.27

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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.