Home / 12,382.56-18,573.64-4,986.83

Finding the Fourth Proportional to 12,382.56, 18,573.64 and 4,986.83

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Solution

The fourth proportional to 12,382.56, 18,573.64 and 4,986.83 is: 7,480.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.56 : 18,573.64 = 4,986.83 : x
  2. Step 2: Convert to fraction form
    12,382.56/18,573.64 = 4,986.83/x
  3. Step 3: Cross multiply
    12,382.56x = 18,573.64 × 4,986.83
  4. Step 4: Simplify right side
    12,382.56x = 92,623,619.13
  5. Step 5: Solve for x
    x = 92,623,619.13/12,382.56
  6. Step 6: Final answer
    x = 7,480.17

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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.