Home / 12,425.33-18,638.01-3,660.14

Finding the Fourth Proportional to 12,425.33, 18,638.01 and 3,660.14

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Solution

The fourth proportional to 12,425.33, 18,638.01 and 3,660.14 is: 5,490.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.33 : 18,638.01 = 3,660.14 : x
  2. Step 2: Convert to fraction form
    12,425.33/18,638.01 = 3,660.14/x
  3. Step 3: Cross multiply
    12,425.33x = 18,638.01 × 3,660.14
  4. Step 4: Simplify right side
    12,425.33x = 68,217,632.73
  5. Step 5: Solve for x
    x = 68,217,632.73/12,425.33
  6. Step 6: Final answer
    x = 5,490.21

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1.5x scale

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.