Home / 19,217.20-26,520.60-12,832.60

Finding the Fourth Proportional to 19,217.20, 26,520.60 and 12,832.60

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Solution

The fourth proportional to 19,217.20, 26,520.60 and 12,832.60 is: 17,709.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.20 : 26,520.60 = 12,832.60 : x
  2. Step 2: Convert to fraction form
    19,217.20/26,520.60 = 12,832.60/x
  3. Step 3: Cross multiply
    19,217.20x = 26,520.60 × 12,832.60
  4. Step 4: Simplify right side
    19,217.20x = 340,328,251.56
  5. Step 5: Solve for x
    x = 340,328,251.56/19,217.20
  6. Step 6: Final answer
    x = 17,709.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.