Home / 11,520.21-17,285.19-6,849.15

Finding the Fourth Proportional to 11,520.21, 17,285.19 and 6,849.15

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Solution

The fourth proportional to 11,520.21, 17,285.19 and 6,849.15 is: 10,276.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.21 : 17,285.19 = 6,849.15 : x
  2. Step 2: Convert to fraction form
    11,520.21/17,285.19 = 6,849.15/x
  3. Step 3: Cross multiply
    11,520.21x = 17,285.19 × 6,849.15
  4. Step 4: Simplify right side
    11,520.21x = 118,388,859.09
  5. Step 5: Solve for x
    x = 118,388,859.09/11,520.21
  6. Step 6: Final answer
    x = 10,276.62

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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.