Home / 8,185.45-12,278.24-4,485.66

Finding the Fourth Proportional to 8,185.45, 12,278.24 and 4,485.66

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Solution

The fourth proportional to 8,185.45, 12,278.24 and 4,485.66 is: 6,728.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,185.45 : 12,278.24 = 4,485.66 : x
  2. Step 2: Convert to fraction form
    8,185.45/12,278.24 = 4,485.66/x
  3. Step 3: Cross multiply
    8,185.45x = 12,278.24 × 4,485.66
  4. Step 4: Simplify right side
    8,185.45x = 55,076,010.04
  5. Step 5: Solve for x
    x = 55,076,010.04/8,185.45
  6. Step 6: Final answer
    x = 6,728.53

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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.