Home / 14,114.40-21,067.32-13,238.88

Finding the Fourth Proportional to 14,114.40, 21,067.32 and 13,238.88

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Solution

The fourth proportional to 14,114.40, 21,067.32 and 13,238.88 is: 19,760.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,114.40 : 21,067.32 = 13,238.88 : x
  2. Step 2: Convert to fraction form
    14,114.40/21,067.32 = 13,238.88/x
  3. Step 3: Cross multiply
    14,114.40x = 21,067.32 × 13,238.88
  4. Step 4: Simplify right side
    14,114.40x = 278,907,721.40
  5. Step 5: Solve for x
    x = 278,907,721.40/14,114.40
  6. Step 6: Final answer
    x = 19,760.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.