Home / 13,891.46-19,171.23-9,167.54

Finding the Fourth Proportional to 13,891.46, 19,171.23 and 9,167.54

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Solution

The fourth proportional to 13,891.46, 19,171.23 and 9,167.54 is: 12,651.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.46 : 19,171.23 = 9,167.54 : x
  2. Step 2: Convert to fraction form
    13,891.46/19,171.23 = 9,167.54/x
  3. Step 3: Cross multiply
    13,891.46x = 19,171.23 × 9,167.54
  4. Step 4: Simplify right side
    13,891.46x = 175,753,017.87
  5. Step 5: Solve for x
    x = 175,753,017.87/13,891.46
  6. Step 6: Final answer
    x = 12,651.88

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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.