Home / 18,423.09-27,611.52-7,880.73

Finding the Fourth Proportional to 18,423.09, 27,611.52 and 7,880.73

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Solution

The fourth proportional to 18,423.09, 27,611.52 and 7,880.73 is: 11,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.09 : 27,611.52 = 7,880.73 : x
  2. Step 2: Convert to fraction form
    18,423.09/27,611.52 = 7,880.73/x
  3. Step 3: Cross multiply
    18,423.09x = 27,611.52 × 7,880.73
  4. Step 4: Simplify right side
    18,423.09x = 217,598,934.01
  5. Step 5: Solve for x
    x = 217,598,934.01/18,423.09
  6. Step 6: Final answer
    x = 11,811.21

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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.