Home / 13,503.05-20,254.94-7,960.38

Finding the Fourth Proportional to 13,503.05, 20,254.94 and 7,960.38

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Solution

The fourth proportional to 13,503.05, 20,254.94 and 7,960.38 is: 11,940.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,503.05 : 20,254.94 = 7,960.38 : x
  2. Step 2: Convert to fraction form
    13,503.05/20,254.94 = 7,960.38/x
  3. Step 3: Cross multiply
    13,503.05x = 20,254.94 × 7,960.38
  4. Step 4: Simplify right side
    13,503.05x = 161,236,910.98
  5. Step 5: Solve for x
    x = 161,236,910.98/13,503.05
  6. Step 6: Final answer
    x = 11,940.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.