Home / 18,617.59-27,910.69-8,079.67

Finding the Fourth Proportional to 18,617.59, 27,910.69 and 8,079.67

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Solution

The fourth proportional to 18,617.59, 27,910.69 and 8,079.67 is: 12,112.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,617.59 : 27,910.69 = 8,079.67 : x
  2. Step 2: Convert to fraction form
    18,617.59/27,910.69 = 8,079.67/x
  3. Step 3: Cross multiply
    18,617.59x = 27,910.69 × 8,079.67
  4. Step 4: Simplify right side
    18,617.59x = 225,509,179.36
  5. Step 5: Solve for x
    x = 225,509,179.36/18,617.59
  6. Step 6: Final answer
    x = 12,112.69

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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.