Home / 14,643.10-21,979.23-8,072.38

Finding the Fourth Proportional to 14,643.10, 21,979.23 and 8,072.38

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Solution

The fourth proportional to 14,643.10, 21,979.23 and 8,072.38 is: 12,116.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,643.10 : 21,979.23 = 8,072.38 : x
  2. Step 2: Convert to fraction form
    14,643.10/21,979.23 = 8,072.38/x
  3. Step 3: Cross multiply
    14,643.10x = 21,979.23 × 8,072.38
  4. Step 4: Simplify right side
    14,643.10x = 177,424,696.67
  5. Step 5: Solve for x
    x = 177,424,696.67/14,643.10
  6. Step 6: Final answer
    x = 12,116.61

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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.