Home / 18,228.39-25,166.10-11,951.70

Finding the Fourth Proportional to 18,228.39, 25,166.10 and 11,951.70

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Solution

The fourth proportional to 18,228.39, 25,166.10 and 11,951.70 is: 16,500.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.39 : 25,166.10 = 11,951.70 : x
  2. Step 2: Convert to fraction form
    18,228.39/25,166.10 = 11,951.70/x
  3. Step 3: Cross multiply
    18,228.39x = 25,166.10 × 11,951.70
  4. Step 4: Simplify right side
    18,228.39x = 300,777,677.37
  5. Step 5: Solve for x
    x = 300,777,677.37/18,228.39
  6. Step 6: Final answer
    x = 16,500.51

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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.