Home / 12,789.57-19,184.40-4,469.55

Finding the Fourth Proportional to 12,789.57, 19,184.40 and 4,469.55

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Solution

The fourth proportional to 12,789.57, 19,184.40 and 4,469.55 is: 6,704.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789.57 : 19,184.40 = 4,469.55 : x
  2. Step 2: Convert to fraction form
    12,789.57/19,184.40 = 4,469.55/x
  3. Step 3: Cross multiply
    12,789.57x = 19,184.40 × 4,469.55
  4. Step 4: Simplify right side
    12,789.57x = 85,745,635.02
  5. Step 5: Solve for x
    x = 85,745,635.02/12,789.57
  6. Step 6: Final answer
    x = 6,704.34

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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.