Home / 11,189.85-16,782.90-3,691.10

Finding the Fourth Proportional to 11,189.85, 16,782.90 and 3,691.10

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Solution

The fourth proportional to 11,189.85, 16,782.90 and 3,691.10 is: 5,536.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.85 : 16,782.90 = 3,691.10 : x
  2. Step 2: Convert to fraction form
    11,189.85/16,782.90 = 3,691.10/x
  3. Step 3: Cross multiply
    11,189.85x = 16,782.90 × 3,691.10
  4. Step 4: Simplify right side
    11,189.85x = 61,947,278.28
  5. Step 5: Solve for x
    x = 61,947,278.28/11,189.85
  6. Step 6: Final answer
    x = 5,536.02

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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.