Home / 13,866.57-19,131.12-7,896.06

Finding the Fourth Proportional to 13,866.57, 19,131.12 and 7,896.06

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Solution

The fourth proportional to 13,866.57, 19,131.12 and 7,896.06 is: 10,893.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.57 : 19,131.12 = 7,896.06 : x
  2. Step 2: Convert to fraction form
    13,866.57/19,131.12 = 7,896.06/x
  3. Step 3: Cross multiply
    13,866.57x = 19,131.12 × 7,896.06
  4. Step 4: Simplify right side
    13,866.57x = 151,060,471.39
  5. Step 5: Solve for x
    x = 151,060,471.39/13,866.57
  6. Step 6: Final answer
    x = 10,893.86

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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.