Home / 16,212.27-22,381.39-11,507.79

Finding the Fourth Proportional to 16,212.27, 22,381.39 and 11,507.79

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Solution

The fourth proportional to 16,212.27, 22,381.39 and 11,507.79 is: 15,886.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,212.27 : 22,381.39 = 11,507.79 : x
  2. Step 2: Convert to fraction form
    16,212.27/22,381.39 = 11,507.79/x
  3. Step 3: Cross multiply
    16,212.27x = 22,381.39 × 11,507.79
  4. Step 4: Simplify right side
    16,212.27x = 257,560,222.54
  5. Step 5: Solve for x
    x = 257,560,222.54/16,212.27
  6. Step 6: Final answer
    x = 15,886.75

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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.