Home / 18,208.32-27,311.04-7,112.88

Finding the Fourth Proportional to 18,208.32, 27,311.04 and 7,112.88

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Solution

The fourth proportional to 18,208.32, 27,311.04 and 7,112.88 is: 10,668.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,208.32 : 27,311.04 = 7,112.88 : x
  2. Step 2: Convert to fraction form
    18,208.32/27,311.04 = 7,112.88/x
  3. Step 3: Cross multiply
    18,208.32x = 27,311.04 × 7,112.88
  4. Step 4: Simplify right side
    18,208.32x = 194,260,150.20
  5. Step 5: Solve for x
    x = 194,260,150.20/18,208.32
  6. Step 6: Final answer
    x = 10,668.76

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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.