Home / 11,191.90-16,788.21-4,613.62

Finding the Fourth Proportional to 11,191.90, 16,788.21 and 4,613.62

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Solution

The fourth proportional to 11,191.90, 16,788.21 and 4,613.62 is: 6,920.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.90 : 16,788.21 = 4,613.62 : x
  2. Step 2: Convert to fraction form
    11,191.90/16,788.21 = 4,613.62/x
  3. Step 3: Cross multiply
    11,191.90x = 16,788.21 × 4,613.62
  4. Step 4: Simplify right side
    11,191.90x = 77,454,421.42
  5. Step 5: Solve for x
    x = 77,454,421.42/11,191.90
  6. Step 6: Final answer
    x = 6,920.58

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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.