Home / 11,825.61-16,319.45-6,520.61

Finding the Fourth Proportional to 11,825.61, 16,319.45 and 6,520.61

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Solution

The fourth proportional to 11,825.61, 16,319.45 and 6,520.61 is: 8,998.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,825.61 : 16,319.45 = 6,520.61 : x
  2. Step 2: Convert to fraction form
    11,825.61/16,319.45 = 6,520.61/x
  3. Step 3: Cross multiply
    11,825.61x = 16,319.45 × 6,520.61
  4. Step 4: Simplify right side
    11,825.61x = 106,412,736.26
  5. Step 5: Solve for x
    x = 106,412,736.26/11,825.61
  6. Step 6: Final answer
    x = 8,998.50

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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.