Home / 19,155.69-28,694.34-9,286.85

Finding the Fourth Proportional to 19,155.69, 28,694.34 and 9,286.85

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Solution

The fourth proportional to 19,155.69, 28,694.34 and 9,286.85 is: 13,911.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.69 : 28,694.34 = 9,286.85 : x
  2. Step 2: Convert to fraction form
    19,155.69/28,694.34 = 9,286.85/x
  3. Step 3: Cross multiply
    19,155.69x = 28,694.34 × 9,286.85
  4. Step 4: Simplify right side
    19,155.69x = 266,479,887.96
  5. Step 5: Solve for x
    x = 266,479,887.96/19,155.69
  6. Step 6: Final answer
    x = 13,911.27

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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.