Home / 14,198.76-21,288.06-5,426.28

Finding the Fourth Proportional to 14,198.76, 21,288.06 and 5,426.28

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Solution

The fourth proportional to 14,198.76, 21,288.06 and 5,426.28 is: 8,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,198.76 : 21,288.06 = 5,426.28 : x
  2. Step 2: Convert to fraction form
    14,198.76/21,288.06 = 5,426.28/x
  3. Step 3: Cross multiply
    14,198.76x = 21,288.06 × 5,426.28
  4. Step 4: Simplify right side
    14,198.76x = 115,514,974.22
  5. Step 5: Solve for x
    x = 115,514,974.22/14,198.76
  6. Step 6: Final answer
    x = 8,135.57

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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.