Home / 16,691.78-23,021.60-10,723.98

Finding the Fourth Proportional to 16,691.78, 23,021.60 and 10,723.98

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Solution

The fourth proportional to 16,691.78, 23,021.60 and 10,723.98 is: 14,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,691.78 : 23,021.60 = 10,723.98 : x
  2. Step 2: Convert to fraction form
    16,691.78/23,021.60 = 10,723.98/x
  3. Step 3: Cross multiply
    16,691.78x = 23,021.60 × 10,723.98
  4. Step 4: Simplify right side
    16,691.78x = 246,883,177.97
  5. Step 5: Solve for x
    x = 246,883,177.97/16,691.78
  6. Step 6: Final answer
    x = 14,790.70

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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.