Home / 25,145.88-37,716.42-12,660.96

Finding the Fourth Proportional to 25,145.88, 37,716.42 and 12,660.96

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Solution

The fourth proportional to 25,145.88, 37,716.42 and 12,660.96 is: 18,990.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,145.88 : 37,716.42 = 12,660.96 : x
  2. Step 2: Convert to fraction form
    25,145.88/37,716.42 = 12,660.96/x
  3. Step 3: Cross multiply
    25,145.88x = 37,716.42 × 12,660.96
  4. Step 4: Simplify right side
    25,145.88x = 477,526,084.96
  5. Step 5: Solve for x
    x = 477,526,084.96/25,145.88
  6. Step 6: Final answer
    x = 18,990.23

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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.