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Finding the Fourth Proportional to 9,086.68, 13,620.23 and 4,396.78

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Solution

The fourth proportional to 9,086.68, 13,620.23 and 4,396.78 is: 6,590.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,086.68 : 13,620.23 = 4,396.78 : x
  2. Step 2: Convert to fraction form
    9,086.68/13,620.23 = 4,396.78/x
  3. Step 3: Cross multiply
    9,086.68x = 13,620.23 × 4,396.78
  4. Step 4: Simplify right side
    9,086.68x = 59,885,132.88
  5. Step 5: Solve for x
    x = 59,885,132.88/9,086.68
  6. Step 6: Final answer
    x = 6,590.43

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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.