Home / 14,121.54-21,183.12-5,356.26

Finding the Fourth Proportional to 14,121.54, 21,183.12 and 5,356.26

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Solution

The fourth proportional to 14,121.54, 21,183.12 and 5,356.26 is: 8,034.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.54 : 21,183.12 = 5,356.26 : x
  2. Step 2: Convert to fraction form
    14,121.54/21,183.12 = 5,356.26/x
  3. Step 3: Cross multiply
    14,121.54x = 21,183.12 × 5,356.26
  4. Step 4: Simplify right side
    14,121.54x = 113,462,298.33
  5. Step 5: Solve for x
    x = 113,462,298.33/14,121.54
  6. Step 6: Final answer
    x = 8,034.70

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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.