Home / 16,121.76-24,189.60-8,731.52

Finding the Fourth Proportional to 16,121.76, 24,189.60 and 8,731.52

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Solution

The fourth proportional to 16,121.76, 24,189.60 and 8,731.52 is: 13,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,121.76 : 24,189.60 = 8,731.52 : x
  2. Step 2: Convert to fraction form
    16,121.76/24,189.60 = 8,731.52/x
  3. Step 3: Cross multiply
    16,121.76x = 24,189.60 × 8,731.52
  4. Step 4: Simplify right side
    16,121.76x = 211,211,976.19
  5. Step 5: Solve for x
    x = 211,211,976.19/16,121.76
  6. Step 6: Final answer
    x = 13,101.05

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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.