Home / 18,735.84-25,852.08-12,108

Finding the Fourth Proportional to 18,735.84, 25,852.08 and 12,108

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Solution

The fourth proportional to 18,735.84, 25,852.08 and 12,108 is: 16,706.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.84 : 25,852.08 = 12,108 : x
  2. Step 2: Convert to fraction form
    18,735.84/25,852.08 = 12,108/x
  3. Step 3: Cross multiply
    18,735.84x = 25,852.08 × 12,108
  4. Step 4: Simplify right side
    18,735.84x = 313,016,984.64
  5. Step 5: Solve for x
    x = 313,016,984.64/18,735.84
  6. Step 6: Final answer
    x = 16,706.86

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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.