Home / 18,638.48-27,957.68-4,787.52

Finding the Fourth Proportional to 18,638.48, 27,957.68 and 4,787.52

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Solution

The fourth proportional to 18,638.48, 27,957.68 and 4,787.52 is: 7,181.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.48 : 27,957.68 = 4,787.52 : x
  2. Step 2: Convert to fraction form
    18,638.48/27,957.68 = 4,787.52/x
  3. Step 3: Cross multiply
    18,638.48x = 27,957.68 × 4,787.52
  4. Step 4: Simplify right side
    18,638.48x = 133,847,952.15
  5. Step 5: Solve for x
    x = 133,847,952.15/18,638.48
  6. Step 6: Final answer
    x = 7,181.27

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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.