Home / 13,454.00-20,149.71-12,986.83

Finding the Fourth Proportional to 13,454.00, 20,149.71 and 12,986.83

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Solution

The fourth proportional to 13,454.00, 20,149.71 and 12,986.83 is: 19,450.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.00 : 20,149.71 = 12,986.83 : x
  2. Step 2: Convert to fraction form
    13,454.00/20,149.71 = 12,986.83/x
  3. Step 3: Cross multiply
    13,454.00x = 20,149.71 × 12,986.83
  4. Step 4: Simplify right side
    13,454.00x = 261,680,907.86
  5. Step 5: Solve for x
    x = 261,680,907.86/13,454.00
  6. Step 6: Final answer
    x = 19,450.05

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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.