Home / 13,121.07-19,682.01-3,761.97

Finding the Fourth Proportional to 13,121.07, 19,682.01 and 3,761.97

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Solution

The fourth proportional to 13,121.07, 19,682.01 and 3,761.97 is: 5,643.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121.07 : 19,682.01 = 3,761.97 : x
  2. Step 2: Convert to fraction form
    13,121.07/19,682.01 = 3,761.97/x
  3. Step 3: Cross multiply
    13,121.07x = 19,682.01 × 3,761.97
  4. Step 4: Simplify right side
    13,121.07x = 74,043,131.16
  5. Step 5: Solve for x
    x = 74,043,131.16/13,121.07
  6. Step 6: Final answer
    x = 5,643.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.