Home / 11,908.09-16,429.38-6,871.64

Finding the Fourth Proportional to 11,908.09, 16,429.38 and 6,871.64

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Solution

The fourth proportional to 11,908.09, 16,429.38 and 6,871.64 is: 9,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,908.09 : 16,429.38 = 6,871.64 : x
  2. Step 2: Convert to fraction form
    11,908.09/16,429.38 = 6,871.64/x
  3. Step 3: Cross multiply
    11,908.09x = 16,429.38 × 6,871.64
  4. Step 4: Simplify right side
    11,908.09x = 112,896,750.43
  5. Step 5: Solve for x
    x = 112,896,750.43/11,908.09
  6. Step 6: Final answer
    x = 9,480.68

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1.5x scale

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.