Home / 11,825.40-16,318.92-6,520.68

Finding the Fourth Proportional to 11,825.40, 16,318.92 and 6,520.68

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Solution

The fourth proportional to 11,825.40, 16,318.92 and 6,520.68 is: 8,998.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,825.40 : 16,318.92 = 6,520.68 : x
  2. Step 2: Convert to fraction form
    11,825.40/16,318.92 = 6,520.68/x
  3. Step 3: Cross multiply
    11,825.40x = 16,318.92 × 6,520.68
  4. Step 4: Simplify right side
    11,825.40x = 106,410,455.27
  5. Step 5: Solve for x
    x = 106,410,455.27/11,825.40
  6. Step 6: Final answer
    x = 8,998.47

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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.