Home / 13,923.09-20,885.85-6,910.11

Finding the Fourth Proportional to 13,923.09, 20,885.85 and 6,910.11

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Solution

The fourth proportional to 13,923.09, 20,885.85 and 6,910.11 is: 10,365.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.09 : 20,885.85 = 6,910.11 : x
  2. Step 2: Convert to fraction form
    13,923.09/20,885.85 = 6,910.11/x
  3. Step 3: Cross multiply
    13,923.09x = 20,885.85 × 6,910.11
  4. Step 4: Simplify right side
    13,923.09x = 144,323,520.94
  5. Step 5: Solve for x
    x = 144,323,520.94/13,923.09
  6. Step 6: Final answer
    x = 10,365.77

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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.