Home / 18,736.08-28,097.50-8,211.21

Finding the Fourth Proportional to 18,736.08, 28,097.50 and 8,211.21

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Solution

The fourth proportional to 18,736.08, 28,097.50 and 8,211.21 is: 12,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.08 : 28,097.50 = 8,211.21 : x
  2. Step 2: Convert to fraction form
    18,736.08/28,097.50 = 8,211.21/x
  3. Step 3: Cross multiply
    18,736.08x = 28,097.50 × 8,211.21
  4. Step 4: Simplify right side
    18,736.08x = 230,714,472.98
  5. Step 5: Solve for x
    x = 230,714,472.98/18,736.08
  6. Step 6: Final answer
    x = 12,313.91

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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.