Home / 18,787.22-25,911.40-12,073.54

Finding the Fourth Proportional to 18,787.22, 25,911.40 and 12,073.54

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Solution

The fourth proportional to 18,787.22, 25,911.40 and 12,073.54 is: 16,651.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.22 : 25,911.40 = 12,073.54 : x
  2. Step 2: Convert to fraction form
    18,787.22/25,911.40 = 12,073.54/x
  3. Step 3: Cross multiply
    18,787.22x = 25,911.40 × 12,073.54
  4. Step 4: Simplify right side
    18,787.22x = 312,842,134.43
  5. Step 5: Solve for x
    x = 312,842,134.43/18,787.22
  6. Step 6: Final answer
    x = 16,651.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.