Home / 15,908.61-21,939.21-10,811.73

Finding the Fourth Proportional to 15,908.61, 21,939.21 and 10,811.73

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Solution

The fourth proportional to 15,908.61, 21,939.21 and 10,811.73 is: 14,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,908.61 : 21,939.21 = 10,811.73 : x
  2. Step 2: Convert to fraction form
    15,908.61/21,939.21 = 10,811.73/x
  3. Step 3: Cross multiply
    15,908.61x = 21,939.21 × 10,811.73
  4. Step 4: Simplify right side
    15,908.61x = 237,200,814.93
  5. Step 5: Solve for x
    x = 237,200,814.93/15,908.61
  6. Step 6: Final answer
    x = 14,910.22

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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.