Home / 15,676.91-23,516.73-5,143.77

Finding the Fourth Proportional to 15,676.91, 23,516.73 and 5,143.77

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Solution

The fourth proportional to 15,676.91, 23,516.73 and 5,143.77 is: 7,716.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.91 : 23,516.73 = 5,143.77 : x
  2. Step 2: Convert to fraction form
    15,676.91/23,516.73 = 5,143.77/x
  3. Step 3: Cross multiply
    15,676.91x = 23,516.73 × 5,143.77
  4. Step 4: Simplify right side
    15,676.91x = 120,964,650.27
  5. Step 5: Solve for x
    x = 120,964,650.27/15,676.91
  6. Step 6: Final answer
    x = 7,716.10

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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.