Home / 18,811.46-25,961.83-12,005.67

Finding the Fourth Proportional to 18,811.46, 25,961.83 and 12,005.67

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Solution

The fourth proportional to 18,811.46, 25,961.83 and 12,005.67 is: 16,569.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.46 : 25,961.83 = 12,005.67 : x
  2. Step 2: Convert to fraction form
    18,811.46/25,961.83 = 12,005.67/x
  3. Step 3: Cross multiply
    18,811.46x = 25,961.83 × 12,005.67
  4. Step 4: Simplify right side
    18,811.46x = 311,689,133.56
  5. Step 5: Solve for x
    x = 311,689,133.56/18,811.46
  6. Step 6: Final answer
    x = 16,569.11

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1.5x scale

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.