Home / 18,787.03-25,943.67-12,084.30

Finding the Fourth Proportional to 18,787.03, 25,943.67 and 12,084.30

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Solution

The fourth proportional to 18,787.03, 25,943.67 and 12,084.30 is: 16,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.03 : 25,943.67 = 12,084.30 : x
  2. Step 2: Convert to fraction form
    18,787.03/25,943.67 = 12,084.30/x
  3. Step 3: Cross multiply
    18,787.03x = 25,943.67 × 12,084.30
  4. Step 4: Simplify right side
    18,787.03x = 313,510,984.43
  5. Step 5: Solve for x
    x = 313,510,984.43/18,787.03
  6. Step 6: Final answer
    x = 16,687.62

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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.