Home / 9,979.92-14,965.77-3,406.64

Finding the Fourth Proportional to 9,979.92, 14,965.77 and 3,406.64

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Solution

The fourth proportional to 9,979.92, 14,965.77 and 3,406.64 is: 5,108.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.92 : 14,965.77 = 3,406.64 : x
  2. Step 2: Convert to fraction form
    9,979.92/14,965.77 = 3,406.64/x
  3. Step 3: Cross multiply
    9,979.92x = 14,965.77 × 3,406.64
  4. Step 4: Simplify right side
    9,979.92x = 50,982,936.27
  5. Step 5: Solve for x
    x = 50,982,936.27/9,979.92
  6. Step 6: Final answer
    x = 5,108.55

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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.