Home / 18,192.66-25,107.03-11,385.60

Finding the Fourth Proportional to 18,192.66, 25,107.03 and 11,385.60

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Solution

The fourth proportional to 18,192.66, 25,107.03 and 11,385.60 is: 15,712.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,192.66 : 25,107.03 = 11,385.60 : x
  2. Step 2: Convert to fraction form
    18,192.66/25,107.03 = 11,385.60/x
  3. Step 3: Cross multiply
    18,192.66x = 25,107.03 × 11,385.60
  4. Step 4: Simplify right side
    18,192.66x = 285,858,600.77
  5. Step 5: Solve for x
    x = 285,858,600.77/18,192.66
  6. Step 6: Final answer
    x = 15,712.85

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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.