Home / 18,787.10-25,904.18-14,998.12

Finding the Fourth Proportional to 18,787.10, 25,904.18 and 14,998.12

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Solution

The fourth proportional to 18,787.10, 25,904.18 and 14,998.12 is: 20,679.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,787.10 : 25,904.18 = 14,998.12 : x
  2. Step 2: Convert to fraction form
    18,787.10/25,904.18 = 14,998.12/x
  3. Step 3: Cross multiply
    18,787.10x = 25,904.18 × 14,998.12
  4. Step 4: Simplify right side
    18,787.10x = 388,513,972.88
  5. Step 5: Solve for x
    x = 388,513,972.88/18,787.10
  6. Step 6: Final answer
    x = 20,679.83

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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.