Home / 18,730.86-28,095.76-7,634.80

Finding the Fourth Proportional to 18,730.86, 28,095.76 and 7,634.80

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Solution

The fourth proportional to 18,730.86, 28,095.76 and 7,634.80 is: 11,451.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,730.86 : 28,095.76 = 7,634.80 : x
  2. Step 2: Convert to fraction form
    18,730.86/28,095.76 = 7,634.80/x
  3. Step 3: Cross multiply
    18,730.86x = 28,095.76 × 7,634.80
  4. Step 4: Simplify right side
    18,730.86x = 214,505,508.45
  5. Step 5: Solve for x
    x = 214,505,508.45/18,730.86
  6. Step 6: Final answer
    x = 11,451.98

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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.