Home / 14,155.43-21,233.84-5,391.02

Finding the Fourth Proportional to 14,155.43, 21,233.84 and 5,391.02

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Solution

The fourth proportional to 14,155.43, 21,233.84 and 5,391.02 is: 8,086.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.43 : 21,233.84 = 5,391.02 : x
  2. Step 2: Convert to fraction form
    14,155.43/21,233.84 = 5,391.02/x
  3. Step 3: Cross multiply
    14,155.43x = 21,233.84 × 5,391.02
  4. Step 4: Simplify right side
    14,155.43x = 114,471,922.99
  5. Step 5: Solve for x
    x = 114,471,922.99/14,155.43
  6. Step 6: Final answer
    x = 8,086.79

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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.