Home / 13,942.86-19,236.47-8,910.03

Finding the Fourth Proportional to 13,942.86, 19,236.47 and 8,910.03

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Solution

The fourth proportional to 13,942.86, 19,236.47 and 8,910.03 is: 12,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.86 : 19,236.47 = 8,910.03 : x
  2. Step 2: Convert to fraction form
    13,942.86/19,236.47 = 8,910.03/x
  3. Step 3: Cross multiply
    13,942.86x = 19,236.47 × 8,910.03
  4. Step 4: Simplify right side
    13,942.86x = 171,397,480.24
  5. Step 5: Solve for x
    x = 171,397,480.24/13,942.86
  6. Step 6: Final answer
    x = 12,292.85

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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.