Home / 10,939.50-15,091.11-6,904.53

Finding the Fourth Proportional to 10,939.50, 15,091.11 and 6,904.53

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Solution

The fourth proportional to 10,939.50, 15,091.11 and 6,904.53 is: 9,524.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.50 : 15,091.11 = 6,904.53 : x
  2. Step 2: Convert to fraction form
    10,939.50/15,091.11 = 6,904.53/x
  3. Step 3: Cross multiply
    10,939.50x = 15,091.11 × 6,904.53
  4. Step 4: Simplify right side
    10,939.50x = 104,197,021.73
  5. Step 5: Solve for x
    x = 104,197,021.73/10,939.50
  6. Step 6: Final answer
    x = 9,524.84

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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.