Home / 14,142.09-19,516.94-8,175.21

Finding the Fourth Proportional to 14,142.09, 19,516.94 and 8,175.21

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Solution

The fourth proportional to 14,142.09, 19,516.94 and 8,175.21 is: 11,282.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.09 : 19,516.94 = 8,175.21 : x
  2. Step 2: Convert to fraction form
    14,142.09/19,516.94 = 8,175.21/x
  3. Step 3: Cross multiply
    14,142.09x = 19,516.94 × 8,175.21
  4. Step 4: Simplify right side
    14,142.09x = 159,555,042.18
  5. Step 5: Solve for x
    x = 159,555,042.18/14,142.09
  6. Step 6: Final answer
    x = 11,282.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.