Home / 19,179.11-28,770.29-5,855.09

Finding the Fourth Proportional to 19,179.11, 28,770.29 and 5,855.09

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Solution

The fourth proportional to 19,179.11, 28,770.29 and 5,855.09 is: 8,783.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179.11 : 28,770.29 = 5,855.09 : x
  2. Step 2: Convert to fraction form
    19,179.11/28,770.29 = 5,855.09/x
  3. Step 3: Cross multiply
    19,179.11x = 28,770.29 × 5,855.09
  4. Step 4: Simplify right side
    19,179.11x = 168,452,464.15
  5. Step 5: Solve for x
    x = 168,452,464.15/19,179.11
  6. Step 6: Final answer
    x = 8,783.12

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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.