Home / 18,731.86-28,097.26-7,635.80

Finding the Fourth Proportional to 18,731.86, 28,097.26 and 7,635.80

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Solution

The fourth proportional to 18,731.86, 28,097.26 and 7,635.80 is: 11,453.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.86 : 28,097.26 = 7,635.80 : x
  2. Step 2: Convert to fraction form
    18,731.86/28,097.26 = 7,635.80/x
  3. Step 3: Cross multiply
    18,731.86x = 28,097.26 × 7,635.80
  4. Step 4: Simplify right side
    18,731.86x = 214,545,057.91
  5. Step 5: Solve for x
    x = 214,545,057.91/18,731.86
  6. Step 6: Final answer
    x = 11,453.48

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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.