Home / 16,807.86-25,212.96-5,129.28

Finding the Fourth Proportional to 16,807.86, 25,212.96 and 5,129.28

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Solution

The fourth proportional to 16,807.86, 25,212.96 and 5,129.28 is: 7,694.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,807.86 : 25,212.96 = 5,129.28 : x
  2. Step 2: Convert to fraction form
    16,807.86/25,212.96 = 5,129.28/x
  3. Step 3: Cross multiply
    16,807.86x = 25,212.96 × 5,129.28
  4. Step 4: Simplify right side
    16,807.86x = 129,324,331.47
  5. Step 5: Solve for x
    x = 129,324,331.47/16,807.86
  6. Step 6: Final answer
    x = 7,694.28

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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.