Home / 12,382.58-18,575.71-4,485.69

Finding the Fourth Proportional to 12,382.58, 18,575.71 and 4,485.69

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Solution

The fourth proportional to 12,382.58, 18,575.71 and 4,485.69 is: 6,729.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.58 : 18,575.71 = 4,485.69 : x
  2. Step 2: Convert to fraction form
    12,382.58/18,575.71 = 4,485.69/x
  3. Step 3: Cross multiply
    12,382.58x = 18,575.71 × 4,485.69
  4. Step 4: Simplify right side
    12,382.58x = 83,324,865.38
  5. Step 5: Solve for x
    x = 83,324,865.38/12,382.58
  6. Step 6: Final answer
    x = 6,729.20

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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.