Home / 11,425.23-15,731.76-10,000.94

Finding the Fourth Proportional to 11,425.23, 15,731.76 and 10,000.94

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Solution

The fourth proportional to 11,425.23, 15,731.76 and 10,000.94 is: 13,770.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.23 : 15,731.76 = 10,000.94 : x
  2. Step 2: Convert to fraction form
    11,425.23/15,731.76 = 10,000.94/x
  3. Step 3: Cross multiply
    11,425.23x = 15,731.76 × 10,000.94
  4. Step 4: Simplify right side
    11,425.23x = 157,332,387.85
  5. Step 5: Solve for x
    x = 157,332,387.85/11,425.23
  6. Step 6: Final answer
    x = 13,770.61

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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.