Home / 8,116.58-12,180.33-3,185.63

Finding the Fourth Proportional to 8,116.58, 12,180.33 and 3,185.63

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Solution

The fourth proportional to 8,116.58, 12,180.33 and 3,185.63 is: 4,780.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.58 : 12,180.33 = 3,185.63 : x
  2. Step 2: Convert to fraction form
    8,116.58/12,180.33 = 3,185.63/x
  3. Step 3: Cross multiply
    8,116.58x = 12,180.33 × 3,185.63
  4. Step 4: Simplify right side
    8,116.58x = 38,802,024.66
  5. Step 5: Solve for x
    x = 38,802,024.66/8,116.58
  6. Step 6: Final answer
    x = 4,780.59

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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.