Home / 8,179.29-12,259.35-3,787.47

Finding the Fourth Proportional to 8,179.29, 12,259.35 and 3,787.47

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Solution

The fourth proportional to 8,179.29, 12,259.35 and 3,787.47 is: 5,676.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.29 : 12,259.35 = 3,787.47 : x
  2. Step 2: Convert to fraction form
    8,179.29/12,259.35 = 3,787.47/x
  3. Step 3: Cross multiply
    8,179.29x = 12,259.35 × 3,787.47
  4. Step 4: Simplify right side
    8,179.29x = 46,431,920.34
  5. Step 5: Solve for x
    x = 46,431,920.34/8,179.29
  6. Step 6: Final answer
    x = 5,676.77

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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.