Home / 12,382.29-18,573.24-4,986.56

Finding the Fourth Proportional to 12,382.29, 18,573.24 and 4,986.56

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Solution

The fourth proportional to 12,382.29, 18,573.24 and 4,986.56 is: 7,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.29 : 18,573.24 = 4,986.56 : x
  2. Step 2: Convert to fraction form
    12,382.29/18,573.24 = 4,986.56/x
  3. Step 3: Cross multiply
    12,382.29x = 18,573.24 × 4,986.56
  4. Step 4: Simplify right side
    12,382.29x = 92,616,482.79
  5. Step 5: Solve for x
    x = 92,616,482.79/12,382.29
  6. Step 6: Final answer
    x = 7,479.75

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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.