Home / 13,884.62-19,160.30-7,918.22

Finding the Fourth Proportional to 13,884.62, 19,160.30 and 7,918.22

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Solution

The fourth proportional to 13,884.62, 19,160.30 and 7,918.22 is: 10,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,884.62 : 19,160.30 = 7,918.22 : x
  2. Step 2: Convert to fraction form
    13,884.62/19,160.30 = 7,918.22/x
  3. Step 3: Cross multiply
    13,884.62x = 19,160.30 × 7,918.22
  4. Step 4: Simplify right side
    13,884.62x = 151,715,394.66
  5. Step 5: Solve for x
    x = 151,715,394.66/13,884.62
  6. Step 6: Final answer
    x = 10,926.86

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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.