Home / 11,825.38-16,319.01-6,520.21

Finding the Fourth Proportional to 11,825.38, 16,319.01 and 6,520.21

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Solution

The fourth proportional to 11,825.38, 16,319.01 and 6,520.21 is: 8,997.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,825.38 : 16,319.01 = 6,520.21 : x
  2. Step 2: Convert to fraction form
    11,825.38/16,319.01 = 6,520.21/x
  3. Step 3: Cross multiply
    11,825.38x = 16,319.01 × 6,520.21
  4. Step 4: Simplify right side
    11,825.38x = 106,403,372.19
  5. Step 5: Solve for x
    x = 106,403,372.19/11,825.38
  6. Step 6: Final answer
    x = 8,997.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.