Home / 19,787.44-29,676.30-6,639.52

Finding the Fourth Proportional to 19,787.44, 29,676.30 and 6,639.52

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Solution

The fourth proportional to 19,787.44, 29,676.30 and 6,639.52 is: 9,957.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,787.44 : 29,676.30 = 6,639.52 : x
  2. Step 2: Convert to fraction form
    19,787.44/29,676.30 = 6,639.52/x
  3. Step 3: Cross multiply
    19,787.44x = 29,676.30 × 6,639.52
  4. Step 4: Simplify right side
    19,787.44x = 197,036,387.38
  5. Step 5: Solve for x
    x = 197,036,387.38/19,787.44
  6. Step 6: Final answer
    x = 9,957.65

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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.