Home / 13,940.38-19,236.44-8,274.16

Finding the Fourth Proportional to 13,940.38, 19,236.44 and 8,274.16

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Solution

The fourth proportional to 13,940.38, 19,236.44 and 8,274.16 is: 11,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.38 : 19,236.44 = 8,274.16 : x
  2. Step 2: Convert to fraction form
    13,940.38/19,236.44 = 8,274.16/x
  3. Step 3: Cross multiply
    13,940.38x = 19,236.44 × 8,274.16
  4. Step 4: Simplify right side
    13,940.38x = 159,165,354.98
  5. Step 5: Solve for x
    x = 159,165,354.98/13,940.38
  6. Step 6: Final answer
    x = 11,417.58

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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.