Home / 18,998.49-28,468.58-11,591.85

Finding the Fourth Proportional to 18,998.49, 28,468.58 and 11,591.85

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Solution

The fourth proportional to 18,998.49, 28,468.58 and 11,591.85 is: 17,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.49 : 28,468.58 = 11,591.85 : x
  2. Step 2: Convert to fraction form
    18,998.49/28,468.58 = 11,591.85/x
  3. Step 3: Cross multiply
    18,998.49x = 28,468.58 × 11,591.85
  4. Step 4: Simplify right side
    18,998.49x = 330,003,451.11
  5. Step 5: Solve for x
    x = 330,003,451.11/18,998.49
  6. Step 6: Final answer
    x = 17,369.98

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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.