Home / 11,116.32-16,651.80-7,208.88

Finding the Fourth Proportional to 11,116.32, 16,651.80 and 7,208.88

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Solution

The fourth proportional to 11,116.32, 16,651.80 and 7,208.88 is: 10,798.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,116.32 : 16,651.80 = 7,208.88 : x
  2. Step 2: Convert to fraction form
    11,116.32/16,651.80 = 7,208.88/x
  3. Step 3: Cross multiply
    11,116.32x = 16,651.80 × 7,208.88
  4. Step 4: Simplify right side
    11,116.32x = 120,040,827.98
  5. Step 5: Solve for x
    x = 120,040,827.98/11,116.32
  6. Step 6: Final answer
    x = 10,798.61

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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.