Home / 18,890.28-28,335.96-11,093.76

Finding the Fourth Proportional to 18,890.28, 28,335.96 and 11,093.76

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Solution

The fourth proportional to 18,890.28, 28,335.96 and 11,093.76 is: 16,640.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.28 : 28,335.96 = 11,093.76 : x
  2. Step 2: Convert to fraction form
    18,890.28/28,335.96 = 11,093.76/x
  3. Step 3: Cross multiply
    18,890.28x = 28,335.96 × 11,093.76
  4. Step 4: Simplify right side
    18,890.28x = 314,352,339.61
  5. Step 5: Solve for x
    x = 314,352,339.61/18,890.28
  6. Step 6: Final answer
    x = 16,640.96

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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.