Home / 13,183.07-19,777.77-5,391.90

Finding the Fourth Proportional to 13,183.07, 19,777.77 and 5,391.90

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Solution

The fourth proportional to 13,183.07, 19,777.77 and 5,391.90 is: 8,089.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.07 : 19,777.77 = 5,391.90 : x
  2. Step 2: Convert to fraction form
    13,183.07/19,777.77 = 5,391.90/x
  3. Step 3: Cross multiply
    13,183.07x = 19,777.77 × 5,391.90
  4. Step 4: Simplify right side
    13,183.07x = 106,639,758.06
  5. Step 5: Solve for x
    x = 106,639,758.06/13,183.07
  6. Step 6: Final answer
    x = 8,089.15

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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.