Home / 16,103.09-22,222.49-9,728.79

Finding the Fourth Proportional to 16,103.09, 22,222.49 and 9,728.79

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Solution

The fourth proportional to 16,103.09, 22,222.49 and 9,728.79 is: 13,425.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,103.09 : 22,222.49 = 9,728.79 : x
  2. Step 2: Convert to fraction form
    16,103.09/22,222.49 = 9,728.79/x
  3. Step 3: Cross multiply
    16,103.09x = 22,222.49 × 9,728.79
  4. Step 4: Simplify right side
    16,103.09x = 216,197,889.84
  5. Step 5: Solve for x
    x = 216,197,889.84/16,103.09
  6. Step 6: Final answer
    x = 13,425.87

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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.