Home / 16,731.20-23,089.50-9,177.86

Finding the Fourth Proportional to 16,731.20, 23,089.50 and 9,177.86

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Solution

The fourth proportional to 16,731.20, 23,089.50 and 9,177.86 is: 12,665.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,731.20 : 23,089.50 = 9,177.86 : x
  2. Step 2: Convert to fraction form
    16,731.20/23,089.50 = 9,177.86/x
  3. Step 3: Cross multiply
    16,731.20x = 23,089.50 × 9,177.86
  4. Step 4: Simplify right side
    16,731.20x = 211,912,198.47
  5. Step 5: Solve for x
    x = 211,912,198.47/16,731.20
  6. Step 6: Final answer
    x = 12,665.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.