Home / 11,925.07-16,456.58-6,619.88

Finding the Fourth Proportional to 11,925.07, 16,456.58 and 6,619.88

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Solution

The fourth proportional to 11,925.07, 16,456.58 and 6,619.88 is: 9,135.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,925.07 : 16,456.58 = 6,619.88 : x
  2. Step 2: Convert to fraction form
    11,925.07/16,456.58 = 6,619.88/x
  3. Step 3: Cross multiply
    11,925.07x = 16,456.58 × 6,619.88
  4. Step 4: Simplify right side
    11,925.07x = 108,940,584.81
  5. Step 5: Solve for x
    x = 108,940,584.81/11,925.07
  6. Step 6: Final answer
    x = 9,135.43

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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.