Home / 18,814.91-28,213.52-6,960.51

Finding the Fourth Proportional to 18,814.91, 28,213.52 and 6,960.51

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Solution

The fourth proportional to 18,814.91, 28,213.52 and 6,960.51 is: 10,437.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.91 : 28,213.52 = 6,960.51 : x
  2. Step 2: Convert to fraction form
    18,814.91/28,213.52 = 6,960.51/x
  3. Step 3: Cross multiply
    18,814.91x = 28,213.52 × 6,960.51
  4. Step 4: Simplify right side
    18,814.91x = 196,380,453.29
  5. Step 5: Solve for x
    x = 196,380,453.29/18,814.91
  6. Step 6: Final answer
    x = 10,437.49

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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.