Home / 14,067.88-21,085.50-5,297.20

Finding the Fourth Proportional to 14,067.88, 21,085.50 and 5,297.20

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Solution

The fourth proportional to 14,067.88, 21,085.50 and 5,297.20 is: 7,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,067.88 : 21,085.50 = 5,297.20 : x
  2. Step 2: Convert to fraction form
    14,067.88/21,085.50 = 5,297.20/x
  3. Step 3: Cross multiply
    14,067.88x = 21,085.50 × 5,297.20
  4. Step 4: Simplify right side
    14,067.88x = 111,694,110.60
  5. Step 5: Solve for x
    x = 111,694,110.60/14,067.88
  6. Step 6: Final answer
    x = 7,939.65

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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.