Home / 11,825.80-16,318.86-6,520.66

Finding the Fourth Proportional to 11,825.80, 16,318.86 and 6,520.66

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Solution

The fourth proportional to 11,825.80, 16,318.86 and 6,520.66 is: 8,998.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,825.80 : 16,318.86 = 6,520.66 : x
  2. Step 2: Convert to fraction form
    11,825.80/16,318.86 = 6,520.66/x
  3. Step 3: Cross multiply
    11,825.80x = 16,318.86 × 6,520.66
  4. Step 4: Simplify right side
    11,825.80x = 106,409,737.65
  5. Step 5: Solve for x
    x = 106,409,737.65/11,825.80
  6. Step 6: Final answer
    x = 8,998.10

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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.