Home / 13,986.32-19,299.96-7,936.16

Finding the Fourth Proportional to 13,986.32, 19,299.96 and 7,936.16

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Solution

The fourth proportional to 13,986.32, 19,299.96 and 7,936.16 is: 10,951.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.32 : 19,299.96 = 7,936.16 : x
  2. Step 2: Convert to fraction form
    13,986.32/19,299.96 = 7,936.16/x
  3. Step 3: Cross multiply
    13,986.32x = 19,299.96 × 7,936.16
  4. Step 4: Simplify right side
    13,986.32x = 153,167,570.55
  5. Step 5: Solve for x
    x = 153,167,570.55/13,986.32
  6. Step 6: Final answer
    x = 10,951.24

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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.