Home / 12,470.10-18,651.15-11,163.30

Finding the Fourth Proportional to 12,470.10, 18,651.15 and 11,163.30

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Solution

The fourth proportional to 12,470.10, 18,651.15 and 11,163.30 is: 16,696.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.10 : 18,651.15 = 11,163.30 : x
  2. Step 2: Convert to fraction form
    12,470.10/18,651.15 = 11,163.30/x
  3. Step 3: Cross multiply
    12,470.10x = 18,651.15 × 11,163.30
  4. Step 4: Simplify right side
    12,470.10x = 208,208,382.80
  5. Step 5: Solve for x
    x = 208,208,382.80/12,470.10
  6. Step 6: Final answer
    x = 16,696.61

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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.