Home / 18,826.83-28,241.87-5,678.91

Finding the Fourth Proportional to 18,826.83, 28,241.87 and 5,678.91

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Solution

The fourth proportional to 18,826.83, 28,241.87 and 5,678.91 is: 8,518.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.83 : 28,241.87 = 5,678.91 : x
  2. Step 2: Convert to fraction form
    18,826.83/28,241.87 = 5,678.91/x
  3. Step 3: Cross multiply
    18,826.83x = 28,241.87 × 5,678.91
  4. Step 4: Simplify right side
    18,826.83x = 160,383,009.57
  5. Step 5: Solve for x
    x = 160,383,009.57/18,826.83
  6. Step 6: Final answer
    x = 8,518.85

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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.