Home / 13,722.12-18,935.82-7,754.94

Finding the Fourth Proportional to 13,722.12, 18,935.82 and 7,754.94

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Solution

The fourth proportional to 13,722.12, 18,935.82 and 7,754.94 is: 10,701.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,722.12 : 18,935.82 = 7,754.94 : x
  2. Step 2: Convert to fraction form
    13,722.12/18,935.82 = 7,754.94/x
  3. Step 3: Cross multiply
    13,722.12x = 18,935.82 × 7,754.94
  4. Step 4: Simplify right side
    13,722.12x = 146,846,147.95
  5. Step 5: Solve for x
    x = 146,846,147.95/13,722.12
  6. Step 6: Final answer
    x = 10,701.42

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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.