Home / 18,113.41-27,170.21-8,245.79

Finding the Fourth Proportional to 18,113.41, 27,170.21 and 8,245.79

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Solution

The fourth proportional to 18,113.41, 27,170.21 and 8,245.79 is: 12,368.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,113.41 : 27,170.21 = 8,245.79 : x
  2. Step 2: Convert to fraction form
    18,113.41/27,170.21 = 8,245.79/x
  3. Step 3: Cross multiply
    18,113.41x = 27,170.21 × 8,245.79
  4. Step 4: Simplify right side
    18,113.41x = 224,039,668.84
  5. Step 5: Solve for x
    x = 224,039,668.84/18,113.41
  6. Step 6: Final answer
    x = 12,368.72

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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.