Home / 13,617.38-18,791.96-7,956.02

Finding the Fourth Proportional to 13,617.38, 18,791.96 and 7,956.02

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Solution

The fourth proportional to 13,617.38, 18,791.96 and 7,956.02 is: 10,979.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.38 : 18,791.96 = 7,956.02 : x
  2. Step 2: Convert to fraction form
    13,617.38/18,791.96 = 7,956.02/x
  3. Step 3: Cross multiply
    13,617.38x = 18,791.96 × 7,956.02
  4. Step 4: Simplify right side
    13,617.38x = 149,509,209.60
  5. Step 5: Solve for x
    x = 149,509,209.60/13,617.38
  6. Step 6: Final answer
    x = 10,979.29

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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.