Home / 10,191.85-15,286.74-2,797.05

Finding the Fourth Proportional to 10,191.85, 15,286.74 and 2,797.05

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Solution

The fourth proportional to 10,191.85, 15,286.74 and 2,797.05 is: 4,195.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,191.85 : 15,286.74 = 2,797.05 : x
  2. Step 2: Convert to fraction form
    10,191.85/15,286.74 = 2,797.05/x
  3. Step 3: Cross multiply
    10,191.85x = 15,286.74 × 2,797.05
  4. Step 4: Simplify right side
    10,191.85x = 42,757,699.68
  5. Step 5: Solve for x
    x = 42,757,699.68/10,191.85
  6. Step 6: Final answer
    x = 4,195.29

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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.